CN113097879A - Car manufacture factory uses switch board with heat dissipation function - Google Patents
Car manufacture factory uses switch board with heat dissipation function Download PDFInfo
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- CN113097879A CN113097879A CN202110311207.0A CN202110311207A CN113097879A CN 113097879 A CN113097879 A CN 113097879A CN 202110311207 A CN202110311207 A CN 202110311207A CN 113097879 A CN113097879 A CN 113097879A
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- power distribution
- distribution cabinet
- heat dissipation
- main body
- air inlet
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a power distribution cabinet with a heat dissipation function for an automobile manufacturing factory, relates to the technical field of power distribution cabinets, and aims to solve the problems that in the use process of the conventional power distribution cabinet, generally, a heat dissipation device is mostly arranged at the upper end of a cabinet body, and in addition, the heat exchange efficiency of cool air and electric elements in the power distribution cabinet is in a lower state in a vertical up-down mode; a cuboid power distribution cabinet main body is fixedly arranged at the upper end of the base; an air inlet filter box is fixedly arranged at the middle upper part of the side wall of the right end of the power distribution cabinet main body, and the inner end of the air inlet filter box is communicated with the inner cavity of the power distribution cabinet main body; 2-6 parallel heat dissipation fans are uniformly and fixedly installed at the rear end edge of the top plane of the power distribution cabinet main body at intervals. According to the invention, as external cool air enters from the air inlet, flows downwards through the upper part of the inner cavity of the power distribution cabinet main body, and is discharged into the water collecting box through the water return hole to be collected in a centralized manner, the influence on the normal use of the heat dissipation fan is avoided, and the heat dissipation efficiency is ensured.
Description
Technical Field
The invention relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with a heat dissipation function for an automobile manufacturing factory.
Background
With the rapid development of socioeconomic in China, the power distribution cabinet is continuously developed in an available mode, more and more places need power distribution, the demand for the power distribution cabinet is larger and larger, the environment where the power distribution cabinet is located is more and more complex, the required working load is higher and higher, and the power distribution cabinet is a necessary tool for the normal development of the society at present.
Like in patent application CN201810268063.3 switch board with heat dissipation function, which comprises an outer shell, the inside of shell is provided with the distribution equipment storehouse, and the below in distribution equipment storehouse is provided with the water-cooling storehouse, the top in distribution equipment storehouse is provided with radiator fan, and radiator fan's the outside is provided with the ventilation net, radiator fan's below is provided with the lock, and the below of lock is provided with OS136 temperature sensor, the top in distribution equipment storehouse is provided with bee calling organ, the distribution equipment storehouse passes through hinged joint with the distribution equipment door, the cavity copper is installed on the top in water-cooling storehouse, and the one end of cavity copper lower surface installs first copper pipe, first copper pipe passes through female connection with first PET pipe, and the cold water row is installed to the other end of first PET pipe, the upper surface of cold water row is provided with heat dissipation aluminum plate. The invention can detect the temperature inside the power distribution cabinet in real time, and can make corresponding heat dissipation measures according to the internal temperature at that time, thereby having wide application conditions, high safety factor and strong practicability.
Current switch board is in the use, and heat abstractor installs the upper end at the cabinet body more usually, dispels the heat through the mode of directly taking out, and the mode of directly taking out has decided that its moisture is difficult to take out, will form the hot environment of hot in the cabinet body at the time of the long term, and by the inhaled air, the hot phenomenon of hot has more aggravated under the great condition of moisture moreover, in addition, the mode of directly going up directly down makes cool air and switch board in electric elements's heat exchange efficiency be in lower state.
Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a power distribution cabinet with a heat dissipation function for an automobile manufacturing plant is provided, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides a power distribution cabinet with a heat dissipation function for an automobile manufacturing plant, which aims to solve the problems that in the use process of the existing power distribution cabinet, generally, a heat dissipation device is mostly arranged at the upper end of a cabinet body, heat dissipation is carried out in a direct-drawing mode, moisture of the power distribution cabinet is difficult to draw out in the direct-drawing mode, a hot and humid environment is formed in the cabinet body in the long term, the hot and humid phenomenon is aggravated under the condition that the sucked air and the moisture are large, and in addition, the heat exchange efficiency of cool air and electric elements in the power distribution cabinet is in a lower state in the direct-up and direct-down mode.
The invention discloses a power distribution cabinet with a heat dissipation function for an automobile manufacturing factory, which has the purposes and effects and is achieved by the following specific technical means:
a power distribution cabinet with a heat dissipation function for an automobile manufacturing factory comprises a base; a cuboid power distribution cabinet main body is fixedly arranged at the upper end of the base; an air inlet filter box is fixedly arranged at the middle upper part of the side wall of the right end of the power distribution cabinet main body, and the inner end of the air inlet filter box is communicated with the inner cavity of the power distribution cabinet main body; 2-6 parallel heat dissipation fans are uniformly and fixedly installed at the rear end edge of the top plane of the power distribution cabinet main body at intervals; a heat dissipation conversion back plate is vertically and fixedly arranged in an inner cavity of the power distribution cabinet main body below the heat dissipation fan; dust falling blocks are fixedly arranged at the positions of the front side wall and the rear side wall of the lower end of the inner cavity of the power distribution cabinet main body respectively; and a non-return cover is transversely and fixedly arranged in the inner cavity of the power distribution cabinet main body between the front dust falling block and the rear dust falling block.
Further, the base includes ponding box and drain pipe, fixed mounting has the ponding box of cuboid box form on the top plane of base, the perpendicular fixed mounting in right-hand member lateral wall bottom position department of ponding box has inside and outside communicating drain pipe, the bottom plate of ponding box inner chamber is the height from left to right side low inclined plane structure.
Further, the switch board main part includes air inlet, suction opening, return water tank groove and return water hole, the air inlet of rectangle form is seted up with the corresponding position department of filter case that admits air to the right-hand member lateral wall upper end of switch board main part, the suction opening of rectangle form is seted up to position department of switch board main part inner chamber heat dissipation conversion backplate lower extreme, return water tank groove has been seted up in the switch board main part box of suction opening rear side, return water tank groove's front end groove wall left and right sides both ends are seted up the return water hole that is linked together with the inner chamber of ponding box respectively.
Furthermore, the air inlet filter box comprises a lime rod, the front end of the air inlet filter box is vertically inserted with the lime rod with uniform intervals in a sliding and inserting mode, the lower end of the air inlet filter box is an open end, and the lower end of the air inlet filter box is of a bevel opening structure with a lower left part and a higher right part.
Further, heat dissipation conversion backplate includes the water conservancy diversion strip, fixed mounting has vertical water conservancy diversion strip on the heat dissipation conversion backplate, the front end of water conservancy diversion strip is arranged in switch board main part inner chamber, the rear end of water conservancy diversion strip then is tangent with the backplate of switch board main part, two of water conservancy diversion strips are a set of, and its two in a set of water conservancy diversion strip is the wavy structure of symmetry.
Furthermore, the front dust falling block and the rear dust falling block are both in a right-angle triangular columnar structure, and the inclined planes of the two dust falling blocks are opposite.
Furthermore, the non-return cover comprises a supporting vertical plate, the non-return cover is of a concave arc surface-shaped structure, the supporting vertical plate is transversely and vertically and downwards fixedly installed in the middle of the concave surface in the non-return cover, and the left end and the right end of the supporting vertical plate are fixedly connected with the left side wall and the right side wall of the inner cavity of the power distribution cabinet main body.
Compared with the prior art, the invention has the following beneficial effects:
because the cool air of outside gets into from the air inlet, through switch board main part inner chamber top downward flow, take away the internal heat of cabinet and upwards discharge through heat dissipation conversion backplate back from the suction opening, and the backward flow steam that produces at the discharge process can be collected in return water tank groove, arranges to concentrate in the ponding box through the return water hole and collects, avoids influencing the normal use of heat dissipation fan, guarantees the radiating efficiency.
Because the front end vertical sliding of filter box that admits air is pegged graft and is had evenly spaced lime stick, the lower extreme of filter box that admits air is the open end, and the lower extreme of filter box that admits air is the bevel connection structure of low right height in a left side, but the cool air of the outer below of suction filter box, the bevel connection structure of the outside below of slope can avoid the suction of impurity, the lime stick can be changed, dehumidifies the air that gets into, guarantees dryly, avoids producing bad damage to inside electrical component.
Because the water conservancy diversion strip is two to be a set of, and two water conservancy diversion strips in its a set of are symmetrical wavy structure, on the one hand, the water conservancy diversion strip can make the air of process collide the contact repeatedly, has increased area of contact and dwell time to guaranteed heat exchange efficiency, the water conservancy diversion strip of rear end can filter the air of inhaling outward, makes heavier impurity and vapor fall back and collect the processing in the backwater case groove, has guaranteed the life of each part of operation.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a front right upper axial view of the present invention.
Fig. 2 is an axial view structural diagram of the cabinet body with the door removed.
Fig. 3 is a rear right upper axial view schematic diagram of the present invention.
Fig. 4 is an axial view structural schematic diagram of the cabinet body back plate in a moving-out state.
Fig. 5 is an axial view of the cabinet housing of the present invention in a removed state.
FIG. 6 is an axial view of the dust-falling block and the check cover of the present invention separated from the back plate of the heat dissipating device.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a base; 101. a water accumulation box; 102. a drain pipe; 2. a power distribution cabinet main body; 201. an air inlet; 202. an air suction opening; 203. a backwater tank; 204. a water return hole; 3. an intake air filter box; 301. a lime rod; 4. a heat dissipation fan; 5. a heat dissipation conversion backplane; 501. a flow guide strip; 6. a dust falling block; 7. a check cover; 701. and supporting the vertical plate.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 6:
the invention provides a power distribution cabinet with a heat dissipation function for an automobile manufacturing factory, which comprises a base 1, wherein a cuboid power distribution cabinet main body 2 is fixedly installed at the upper end of the base 1, an air inlet filter box 3 is fixedly installed at the middle part of the side wall of the right end of the power distribution cabinet main body 2 close to the upper part, the inner end of the air inlet filter box 3 is communicated with the inner cavity of the power distribution cabinet main body 2, 2-6 parallel heat dissipation fans 4 are uniformly and fixedly installed at the rear end edge of the top plane of the power distribution cabinet main body 2 at intervals, and the number of the heat dissipation. The heat dissipation conversion back plate 5 is vertically and fixedly installed in the inner cavity of the power distribution cabinet main body 2 below the heat dissipation fan 4, dust falling blocks 6 are respectively and fixedly installed at the positions of the front side wall and the rear side wall of the lower end of the inner cavity of the power distribution cabinet main body 2, and a non-return cover 7 is transversely and fixedly installed in the inner cavity of the power distribution cabinet main body 2 between the front dust falling block 6 and the rear dust falling.
Wherein, base 1 includes ponding box 101 and drain pipe 102, fixed mounting has the ponding box 101 of cuboid box form on base 1's the top plane, the inside and outside communicating drain pipe 102 of the perpendicular fixed mounting in right-hand member lateral wall bottom position department of its ponding box 101, the bottom plate of ponding box 101 inner chamber is the low inclined plane structure of left-high right side, the comdenstion water that produces in the 2 inner chambers of switch board main part is collected to accessible ponding box 101, and the inner chamber bottom surface of slope can be independently with the comdenstion water outer arranging, avoids the interior damp and hot of cabinet.
Wherein, the power distribution cabinet main body 2 comprises an air inlet 201, an air suction opening 202, a water return tank groove 203 and a water return hole 204, the rectangular air inlet 201 is arranged at the position corresponding to the air inlet filter box 3 at the upper end of the side wall at the right end of the power distribution cabinet main body 2, the rectangular air suction opening 202 is arranged at the position of the lower end of the heat dissipation conversion back plate 5 in the inner cavity of the power distribution cabinet main body 2, the water return tank groove 203 is arranged in the box body of the power distribution cabinet main body 2 at the rear side of the air suction opening 202, the water return holes 204 communicated with the inner cavity of the water accumulation box 101 are respectively arranged at the left end and the right end of the groove wall at the front end of the water return tank groove 203, cool air outside enters from the air inlet 201, flows downwards through the upper part of the inner cavity of the power distribution cabinet main body 2, takes away the heat in the cabinet body and is discharged upwards from the back of the heat dissipation conversion back plate 5, the normal use of the heat dissipation fan 4 is prevented from being influenced, and the heat dissipation efficiency is ensured.
Wherein, the rose box 3 that admits air includes lime rod 301, the perpendicular slip grafting of the front end of the rose box 3 that admits air has the lime rod 301 that the interval is even, the lower extreme of the rose box 3 that admits air is the open end, and the lower extreme of the rose box 3 that admits air is the high bevel connection structure in the low right side in a left side, can aspirate the cool air of the outer below of rose box 3 that admits air, the suction of impurity can be avoided to the bevel connection structure of the outside below of slope, lime rod 301 can be changed, dehumidify the air that gets into, guarantee the drying, avoid producing the damage to inside electrical element.
Wherein, heat dissipation conversion backplate 5 includes water conservancy diversion strip 501, fixed mounting has vertical water conservancy diversion strip 501 on the heat dissipation conversion backplate 5, the front end of water conservancy diversion strip 501 is arranged in 2 inner chambers of switch board main part, and the rear end of water conservancy diversion strip 501 then is tangent with the backplate of switch board main part 2, water conservancy diversion strip 501 is two and is a set of, its two water conservancy diversion strips 501 in a set of are the wavy structure of symmetry, on the one hand, water conservancy diversion strip 501 can make the air of process collide the contact repeatedly, contact area and dwell time have been increased, thereby heat exchange efficiency has been guaranteed, the water conservancy diversion strip 501 of rear end can filter the air of outer absorption, make heavier impurity gas and water vapour fall back and collect in the return water tank groove 203 and handle, the life of each part of operation has been guaranteed.
Wherein, two dust falling blocks 6 in front and back are right-angled triangular prism structures, and the inclined planes of two dust falling blocks 6 are opposite, can guarantee that dust and moist steam fall to ponding box 101 and collect.
Wherein, non return cover 7 is recessed arc face-shaped structure including supporting riser 701, and non return cover 7 concave surface's middle part is horizontal perpendicular downward fixed mounting and is supported riser 701, supports about riser 701 both ends and the left and right sides lateral wall fixed connection of switch board main part 2 inner chamber, can prevent that the dust and the moisture of collecting from shifting up, has guaranteed the aridity of electrical component operational environment in the switch board main part 2.
The specific use mode and function of the embodiment are as follows:
in the using process, cool air outside enters from the air inlet 201, flows downwards through the upper part of the inner cavity of the power distribution cabinet main body 2, takes away heat in the cabinet body, and is upwards discharged from the air suction opening 202 through the back part of the heat dissipation conversion back plate 5, backflow water vapor generated in the discharging process can be collected in the water return tank 203 and is discharged into the water accumulation box 101 through the water return hole 204 to be collected in a centralized manner, so that the normal use of the heat dissipation fan 4 is avoided being influenced, the heat dissipation efficiency is ensured, the lower end of the air inlet filter box 3 is of a bevel opening structure with a lower left part and a higher right part, cool air below the outside of the air inlet filter box 3 can be sucked, the bevel opening structure with an outward lower part can avoid the suction of impurities, the lime rod 301 can be replaced, the entering air is dried, the damage to the electrical elements inside is avoided, two guide strips 501 are in one group, and two guide strips 501 in one group are in a symmetrical, on one hand, the flow guide strips 501 can make the passing air repeatedly collide and contact, so that the contact area and the retention time are increased, the heat exchange efficiency is ensured, the flow guide strips 501 at the rear end can filter the externally sucked air, so that heavier impurities and water vapor fall back into the water return tank 203 for collection and treatment, the service life of each running component is ensured, the bottom plate of the inner cavity of the water accumulation box 101 is of a structure with inclined planes which are high at the left and low at the right, the condensed water generated in the inner cavity of the power distribution cabinet main body 2 can be collected through the water accumulation box 101, the bottom surface of the inclined inner cavity can automatically discharge the condensed water outside to avoid damp and hot in the cabinet, the non-return cover 7 is of a concave arc-surface-shaped structure, a supporting vertical plate 701 is transversely and vertically and downwards fixedly installed in the middle of the inner concave surface of the non-return cover 7, the left end and the right end of the supporting vertical plate 701, the drying performance of the operation environment of the electrical elements in the power distribution cabinet main body 2 is ensured.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides a switch board for automobile manufacturing factory with heat dissipation function, its characterized in that, includes base (1), the upper end fixed mounting of base (1) has switch board main part (2) of cuboid form, the right-hand member lateral wall middle part of switch board main part (2) leans on upper fixed mounting to have filter box (3) that admits air, the inner and switch board main part (2) inner chamber of filter box (3) that admits air are linked together, switch board main part (2) top planar rear end arris department interval evenly fixed is provided with 2-6 heat dissipation fan (4) side by side, vertical fixed mounting has heat dissipation conversion backplate (5) in switch board main part (2) inner chamber of heat dissipation fan (4) below, both sides wall position punishment do not fixed mounting has dust piece (6) about the lower extreme of switch board main part (2) inner chamber, two around it transversely fixed mounting has non return cover (7) in switch board main part (2) inner chamber between dust piece (6, the heat dissipation conversion backplate (5) comprises a flow guide strip (501), the heat dissipation conversion backplate (5) is fixedly provided with a vertical flow guide strip (501), the front end of the flow guide strip (501) is arranged in the inner cavity of the power distribution cabinet main body (2), and the rear end of the flow guide strip (501) is tangent to the backplate of the power distribution cabinet main body (2).
2. The power distribution cabinet with the heat dissipation function for the automobile manufacturing plant according to claim 1, wherein the base (1) comprises a water accumulation box (101) and a water drainage pipe (102), the rectangular box-shaped water accumulation box (101) is fixedly installed on the top plane of the base (1), the water drainage pipe (102) which is communicated with the inside and the outside is vertically and fixedly installed at the bottom position of the side wall of the right end of the water accumulation box (101), and the bottom plate of the inner cavity of the water accumulation box (101) is of a structure with a high inclined surface and a low inclined surface.
3. The power distribution cabinet with the heat dissipation function for the automobile manufacturing plant according to claim 1, wherein the power distribution cabinet main body (2) comprises an air inlet (201), an air suction opening (202), a water return tank groove (203) and a water return hole (204), the rectangular air inlet (201) is formed in the position, corresponding to the air inlet filter box (3), of the upper end of the side wall of the right end of the power distribution cabinet main body (2), the rectangular air suction opening (202) is formed in the position, corresponding to the lower end of the heat dissipation conversion back plate (5), of the inner cavity of the power distribution cabinet main body (2), the water return tank groove (203) is formed in the box body of the power distribution cabinet main body (2) at the rear side of the air suction opening (202), and the water return holes (204) communicated with the inner cavity of the water collecting box (101) are respectively formed in the left end.
4. The power distribution cabinet with the heat dissipation function for the automobile manufacturing plants as claimed in claim 1, wherein the air inlet filter box (3) comprises a lime rod (301), the front end of the air inlet filter box (3) is vertically slidably inserted with the lime rod (301) with uniform intervals, the lower end of the air inlet filter box (3) is an open end, and the lower end of the air inlet filter box (3) is of a bevel structure with a lower left end and a higher right end.
5. The power distribution cabinet with the heat dissipation function for the automobile manufacturing plants as claimed in claim 1, wherein the two air guide strips (501) are in a group, and the two air guide strips (501) in the group are in a symmetrical wave-like structure.
6. The power distribution cabinet with the heat dissipation function for the automobile manufacturing plants as recited in claim 1, wherein the front dust falling block (6) and the rear dust falling block (6) are both in a right-angled triangular prism structure, and the inclined surfaces of the two dust falling blocks (6) are opposite.
7. The power distribution cabinet with the heat dissipation function for the automobile manufacturing plants as claimed in claim 1, wherein the check cover (7) comprises a supporting vertical plate (701), the check cover (7) is of a concave arc surface-shaped structure, the supporting vertical plate (701) is fixedly installed in the middle of the concave surface of the check cover (7) transversely and vertically downwards, and the left end and the right end of the supporting vertical plate (701) are fixedly connected with the left side wall and the right side wall of the inner cavity of the power distribution cabinet main body (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110311207.0A CN113097879B (en) | 2021-03-24 | 2021-03-24 | Car manufacture factory uses switch board with heat dissipation function |
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| CN202110311207.0A CN113097879B (en) | 2021-03-24 | 2021-03-24 | Car manufacture factory uses switch board with heat dissipation function |
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Cited By (1)
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| CN113555776A (en) * | 2021-09-06 | 2021-10-26 | 广东电网有限责任公司 | Power distribution cabinet |
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|---|---|---|---|---|
| CN113555776A (en) * | 2021-09-06 | 2021-10-26 | 广东电网有限责任公司 | Power distribution cabinet |
| CN113555776B (en) * | 2021-09-06 | 2024-06-11 | 广东电网有限责任公司 | Power distribution cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113097879B (en) | 2022-12-06 |
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Address after: No. 1958, Chuangye street, automobile economic and Technological Development Zone, Changchun City, Jilin Province Applicant after: The Ninth Design and Research Institute of Machinery Industry Co.,Ltd. Address before: No. 1958, Chuangye street, automobile economic and Technological Development Zone, Changchun City, Jilin Province Applicant before: Machinery Industry Ninth Design and Research Institute Co.,Ltd. |
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