CN209783373U - heat exchange fin and heat exchanger with same - Google Patents
heat exchange fin and heat exchanger with same Download PDFInfo
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- CN209783373U CN209783373U CN201822240214.2U CN201822240214U CN209783373U CN 209783373 U CN209783373 U CN 209783373U CN 201822240214 U CN201822240214 U CN 201822240214U CN 209783373 U CN209783373 U CN 209783373U
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- heat exchange
- edge
- exchange fin
- concave portion
- holes
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Abstract
The utility model discloses a heat transfer fin and heat exchanger that has it, heat transfer fin include the body, and the body has a plurality of heat transfer holes, and every heat transfer hole runs through the body on the thickness direction of body, and the body has first border and the second border that extends and set up relatively along its length direction, and first border is equipped with first concave part, and the second border is equipped with the second concave part, and wherein, the at least partly circular arc transition of first concave part and/or second concave part. According to the utility model discloses heat transfer fin has advantages such as with low costs, good performance, temperature distribution is even and long service life.
Description
Technical Field
The utility model relates to a heat exchanger technical field specifically, relates to a heat transfer fin and heat exchanger that has it.
Background
The related art provides a heat exchange fin, wherein flue gas is blocked by lifting a flanging around a heat exchange tube, so that the heat exchange effect is enhanced, but the material of the fin is not reduced, so that the cost is higher; the heat exchange fin is also provided in the related art, although the lower side is provided with the groove to reduce fin materials, the groove has a convex point, so that a local high-temperature point is easily generated, and the heat exchange fin is easily burnt.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a heat exchange fin, heat exchange fin
The utility model also provides a heat exchanger of having above-mentioned heat transfer fin.
According to the utility model discloses a heat transfer fin includes the body, the body has a plurality of heat transfer holes, every the heat transfer hole is in run through in the thickness direction of body the body, the body has first border and the second border that extends and relative setting along its length direction, first border is equipped with first concave part, the second border is equipped with the second concave part, wherein, first concave part and/or at least a part circular arc transition of second concave part.
according to the utility model discloses heat transfer fin has advantages such as with low costs, good performance, temperature distribution is even and long service life.
In addition, according to the utility model discloses above-mentioned embodiment's heat transfer fin can also have following additional technical characterstic:
According to some embodiments of the invention, the first concave part is a plurality of concave parts and arranged at intervals along the length direction of the body; the second concave parts are multiple and arranged at intervals along the length direction of the body.
Optionally, the first recess and the second recess are each configured in a V shape, and a width of the first recess gradually increases in a direction away from a center of the body, and a width of the second recess gradually increases in a direction away from the center of the body.
According to some embodiments of the invention, at least a portion of the first rim and the second rim are complementary in shape.
According to some embodiments of the invention, at least one of the first recess and the second recess is provided with a first flange.
According to some embodiments of the utility model, it is a plurality of the heat transfer hole is followed the length direction interval arrangement of body is the multiunit, in every group the heat transfer hole is followed the width direction interval arrangement of body.
Optionally, the first recess is located between two adjacent heat exchange holes close to the first edge; the second concave part is positioned between two adjacent heat exchange holes close to the second edge.
Optionally, the heat exchanging hole is oval, and a major axis direction of the oval is parallel to a width direction of the body.
Optionally, at least one spoiler hole is arranged between two adjacent sets of heat exchange holes, and in the width direction of the body, the spoiler hole is located between two adjacent heat exchange holes.
Further, the area of the turbulent flow hole is smaller than that of the heat exchange hole.
Further, the shape of the turbulent flow hole is circular or elliptical.
Further, at least one of the heat exchange hole and the turbulent flow hole is provided with a second flange extending along the circumferential direction thereof.
According to some embodiments of the present invention, the body has a third edge and a fourth edge extending along its width direction and being arranged relatively, at least one of the third edge and the fourth edge being provided with a third flange.
optionally, the third edge is provided with a third concave portion, the fourth edge is provided with a fourth concave portion, and the contour lines of the third concave portion and the fourth concave portion are both formed into a concave arc shape.
According to the utility model discloses heat exchanger of second aspect embodiment, include according to the utility model discloses the heat transfer fin of first aspect embodiment.
According to the utility model discloses heat exchanger, through utilizing according to the utility model discloses the heat transfer fin of first aspect embodiment has advantages such as low in manufacturing cost and heat transfer are effectual.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
Fig. 1 is a schematic structural diagram of a heat exchange fin according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a heat exchange fin according to an embodiment of the present invention.
Reference numerals:
Heat exchange fins 100; a body 100 a;
A first edge 10; a first recess 11; a first left wall 111; a first right wall 112; a first straight wall 12; a circular arc recess 121;
A second edge 20; a second recess 21; a second left wall 211; a second right wall 212; a second straight wall 213; a circular arc segment 22;
A third edge 30; the third recess 31; a fourth edge 40; the fourth concave portion 41;
Heat exchanging holes 50; a spoiler flow hole 51;
A first flange 61; a second flange 62; and a third flange 63.
Detailed Description
reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A heat exchange fin 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1-2.
As shown in fig. 1 and 2, the heat exchange fin 100 according to the embodiment of the present invention includes a body 100a, the body 100a has a plurality of heat exchange holes 50, each heat exchange hole 50 penetrates the body 100a in a thickness direction of the body 100a, the body 100a has a first edge 10 and a second edge 20 extending along a length direction thereof and oppositely disposed, the first edge 10 is provided with a first concave portion 11, the second edge 20 is provided with a second concave portion 21, wherein at least a part of the first concave portion 11 and/or the second concave portion 21 is in arc transition.
It should be noted that the length direction of the body 100a refers to the left-right direction in the drawing, that is, the upper side edge of the body 100a is the first edge 10, the lower side edge of the body 100a is the second edge 20, and both the first edge 10 and the second edge 20 extend in the left-right direction. The first concave portion 11 is formed by the first edge 10 being concave downward, and the second concave portion 21 is formed by the second edge 20 being concave upward, in other words, the first concave portion 11 may be formed by notching the body 100a adjacent to the first edge 10, and the second concave portion 21 may be formed by notching the body 100a adjacent to the second edge 20.
at least a part of the first recess 11 and/or the second recess 21 is in the form of a circular arc transition, i.e. at least a part of the first recess 11 may be provided as a circular arc transition, or at least a part of the second recess 21 may be provided as a circular arc transition, or at least a part of both the first recess 11 and the second recess 21 may be provided as a circular arc transition. It should be noted that the circular arc transition means that the connection between the first concave portion 11 and the other portion of the first edge 10 and/or the connection between the second concave portion 21 and the other portion of the second edge 20 are both transited through a circular arc, so that no corner exists at each of the first concave portion 11 and/or the second concave portion 21.
According to the utility model discloses heat transfer fin 100 through set up first concave part 11 at first border 10 and set up second concave part 21 at second border 20 to reduce body 100 a's volume, thereby reduced body 100 a's manufacturing material and the weight of itself, and then reduced heat transfer fin 100's manufacturing cost, improved heat transfer fin 100's performance. Moreover, at least a part of the circular arc of the first concave portion 11 and/or the second concave portion 21 is transited, so that the material uniformity of the first edge 10 and/or the second edge 20 can be ensured, the temperature distribution of the first edge 10 and/or the second edge 20 is uniform, a local high-temperature point with concentrated heat at the first edge 10 and/or the second edge 20 is avoided, the risk of burning the heat exchange fin 100 is reduced, and the service life of the heat exchange fin 100 is prolonged.
Therefore, according to the utility model discloses heat transfer fin 100 has advantages such as with low costs, good performance, temperature distribution is even and long service life.
In some embodiments of the present invention, as shown in fig. 1 and 2, the first concave portions 11 are plural and are spaced apart along the length direction of the body 100 a; the second recesses 21 are provided in plurality and spaced apart from each other in the longitudinal direction of the body 100 a. Specifically, the plurality of first recesses 11 are provided at intervals in the left-right direction in the drawing at the first edge 10, and the plurality of second recesses 21 are provided at intervals in the left-right direction in the drawing at the second edge 20, whereby the space of the body 100a can be sufficiently utilized, the material for manufacturing the body 100a can be further reduced, and the manufacturing cost of the heat exchange fin 100 can be reduced.
Alternatively, as shown in fig. 2, each of the first recess 11 and the second recess 21 is configured in a V shape, and the width of the first recess 11 is gradually increased in a direction away from the center of the body 100a, and the width of the second recess 21 is gradually increased in a direction away from the center of the body 100 a.
For example, the first recess 11 and the second recess 21 are configured in a substantially V shape, the first recess 11 includes a first left wall 111 and a first right wall 112, an included angle is formed between the first left wall 111 and the first right wall 112, a connection between the first left wall 111 and the first right wall 112 is in a circular arc transition, and a distance between the first left wall 111 and the first right wall 112 in the horizontal direction gradually increases from bottom to top; the second concave portion 21 includes a second left wall 211, a second straight wall 213 and a second right wall 212, wherein the upper end of the second left wall 211 and the upper end of the second right wall 212 are respectively connected to two ends of the second straight wall 213, the connection positions among the second left wall 211, the second straight wall 213 and the second right wall 212 are all in arc transition, an included angle is formed between the second left wall 211 and the second right wall 212, and the distance between the second left wall 211 and the second right wall 212 in the horizontal direction gradually increases from top to bottom.
In some embodiments of the present invention, at least a portion of the first edge 10 and the second edge 20 are complementary in shape. Specifically, as shown in fig. 2, of the two adjacent second concave portions 21, the second right wall 212 of the second concave portion 21 on the left side meets the second left wall 211 of the second concave portion 21 on the right side, and the joint is formed as an arc segment 22, the first straight wall 12 is connected between the two adjacent first concave portions 11, and the first straight wall 12 has an arc concave portion 121 with a shape similar to that of the arc segment 22, that is, the arc concave portion 121 on the first edge 10 is complementary to the arc segment 22 on the second concave portion 21. Thus, a plurality of heat exchange fins 100 can be processed on one material by a progressive die, thereby improving the processing efficiency.
in some embodiments of the present invention, at least one of the first recess 11 and the second recess 21 is provided with a first flange 61. For example, in the embodiment shown in fig. 1, the first concave portion 11 is provided with the first turned-over edge 61 extending along the horizontal direction, and it can be understood that, in the working process of the heat exchanger, high-temperature flue gas flows from bottom to top, and the contact area between the heat exchanger and the high-temperature flue gas can be increased by arranging the first turned-over edge 61, so that the heat exchange effect between the heat exchange fin 100 and heat in the flue gas is improved, and further, the heat exchange efficiency of the heat exchange fin 100 is improved. Preferably, the first recess 11 and the second recess 21 are both provided with the first burring 61, whereby the heat exchange efficiency of the heat exchange fin 100 can be further improved.
In some embodiments of the present invention, as shown in fig. 1 and 2, the plurality of heat exchanging holes 50 are arranged in a plurality of groups at intervals along the length direction of the body 100a, and the heat exchanging holes 50 in each group are arranged at intervals along the width direction of the body 100 a. For example, the heat exchanging holes 50 may be 8 and arranged in 4 groups at intervals in the left-right direction, each group includes 2 heat exchanging holes 50, and the 2 heat exchanging holes 50 are arranged at intervals in the up-down direction. It can be understood that the heat exchanging holes 50 are used to mount and fix the heat exchanging pipes, and thus, the arrangement of the plurality of heat exchanging holes 50 on the body 100a is uniform, thereby making the heat exchanging effect of the plurality of heat exchanging pipes uniform.
In some examples of the present invention, as shown in fig. 1 and 2, the first recess 11 is located between two adjacent heat exchanging holes 50 near the first edge 10; the second recess 21 is located between two adjacent heat exchanging holes 50 near the second rim 20. Specifically, the first recess 11 is located between two adjacent heat exchange holes 50 in the left-right direction, the second recess 21 is located between two adjacent heat exchange holes 50 in the left-right direction, and the first recess 11 and the second recess 21 are correspondingly disposed, whereby the space utilization of the main body 100a can be improved to reduce the manufacturing material of the main body 100a to the maximum.
In some optional examples of the present invention, as shown in fig. 2, the heat exchanging hole 50 has an oval shape, and a major axis direction of the oval shape is parallel to a width direction of the body 100 a. In this way, the heat exchange holes 50 may be provided as many as possible in the longitudinal direction of the body 100a, thereby further improving the utilization rate of the body 100 a. It should be noted that the shape of the heat exchanging hole 50 is adapted to the cross-sectional shape of the heat exchanging pipe, and in other embodiments of the present invention, the cross-sectional shape of the heat exchanging pipe may be circular, and the shape of the corresponding heat exchanging hole 50 is configured to be circular.
In some specific examples of the present invention, as shown in fig. 1 and 2, at least one baffle hole 51 is provided between two adjacent sets of heat exchanging holes 50, and the baffle hole 51 is located between two adjacent heat exchanging holes 50 in the width direction of the body 100 a. That is, the spoiler holes 51 are located between the adjacent two heat exchange holes 50 in the left-right direction, while the spoiler holes 51 are located between the adjacent two heat exchange holes 50 in the up-down direction, so that portions between the plurality of heat exchange holes 50 on the body 100a can be sufficiently utilized, thereby increasing the area of the spoiler holes 51 and increasing the number of the spoiler holes 51. By providing the baffle hole 51, heat can be passed through the fin in the front-rear direction of the fin, thereby further improving the heat exchange efficiency.
Alternatively, the shape of the spoiler hole 51 may be circular or elliptical. For example, in the example shown in fig. 2, the shape of the spoiler hole 51 is an ellipse, whereby the area of the spoiler hole 51 can be increased as much as possible in a limited space. Further, as shown in fig. 2, the spoiler hole 51 has an area smaller than that of the heat exchanging hole 50.
Further, as shown in fig. 1, at least one of the heat exchanging hole 50 and the spoiler hole 51 is provided with a second burring 62 extending in a circumferential direction thereof. For example, the second turned-over edge 62 protruding forwards or backwards is arranged at the edge of the heat exchange hole 50, and the contact area between the heat exchange hole 50 and the heat exchange tube can be increased by arranging the second turned-over edge 62, so that the heat exchange efficiency between the heat exchange fin 100 and the heat exchange tube is improved. Preferably, the heat exchanging hole 50 and the baffle hole 51 are provided with the second flange 62.
In some embodiments of the present invention, as shown in fig. 1, the body 100a has a third edge 31 and a fourth edge 40 extending along the width direction thereof and disposed opposite to each other, and at least one of the third edge 31 and the fourth edge 40 is provided with a third flange 63. For example, the left edge of the body 100a is formed as a third edge 31, the right edge of the body 100a is formed as a fourth edge 40, and the third edge 31 and the fourth edge are provided with third flanges 63 protruding forwards. It is worth to say that, two edges of the heat exchange fin 100 in the length direction are respectively welded to the inner wall of the shell of the heat exchanger, and the heat exchange fin 100 can be conveniently welded to the inner wall of the shell of the heat exchanger by arranging the third flanging 63, so that the heat exchange fin 100 is convenient to install.
Alternatively, as shown in fig. 1 and 2, the third edge 31 is provided with a third concave portion 31, the fourth edge 40 is provided with a fourth concave portion 41, and the contour lines of the third concave portion 31 and the fourth concave portion 41 are each formed in a concave arc shape. By providing the third recess 31 and the fourth recess 41, the manufacturing material of the body 100a can be further reduced, thereby further reducing the manufacturing cost of the heat exchange fin 100.
A heat exchange fin 100 according to an embodiment of the present invention will be described with reference to fig. 1 and 2.
As shown in fig. 1 and 2, the heat exchanging fin 100 includes a body 100a, and a first edge 10, a second edge 20, a third edge 31 and a fourth edge 40 are respectively formed on an upper side edge, a lower side edge, a left side edge and a right side edge of the body 100 a.
the first edge 10 is provided with a plurality of first concave portions 11 arranged at intervals in the left-right direction, the second edge 20 is provided with a plurality of second concave portions 21 arranged at intervals in the left-right direction, the first concave portions 11 and the second concave portions 21 are both in V-shaped and arc transition, the width of the first concave portions 11 is gradually increased from bottom to top, and the width of the second concave portions 21 is gradually increased from top to bottom. The first concave portion 11 comprises a first left wall 111 and a first right wall, wherein the second concave portion 21 comprises a second left wall 211, a second straight wall 213 and a second right wall 212, the joints between two adjacent second concave portions 21 are connected by a circular arc section 22, a first straight wall 12 is arranged between two adjacent first concave portions 11, and the first straight wall 12 is provided with a circular arc concave portion 121 matched with the circular arc section 22, so that the first edge 10 is complementary to the second edge 20.
The third edge 31 and the fourth edge 40 are both provided with a third turned edge 63, and the third edge 31 is provided with a third concave portion 31, and the fourth edge 40 is provided with a fourth concave portion 41.
The body 100a is provided with 8 heat exchange holes 50 and three turbulent flow holes 51, the 8 heat exchange holes 50 are arranged into 4 groups at intervals in the left-right direction, each group comprises 2 heat exchange holes 50 arranged at intervals in the up-down direction, each turbulent flow hole 51 is arranged between two adjacent heat exchange holes 50 in the up-down direction, and each turbulent flow hole 51 is arranged between two adjacent heat exchange holes 50 in the left-right direction. The heat exchanging hole 50 and the spoiler hole 51 are each configured in an elliptical shape, and the area of the spoiler hole 51 is smaller than that of the heat exchanging hole 50. The heat exchanging hole 50 and the turbulent hole 51 are each provided with a second flange 62 extending in their respective circumferential directions.
According to the utility model discloses heat exchanger of second aspect embodiment, include according to the utility model discloses heat transfer fin 100 of first aspect embodiment.
According to the utility model discloses heat exchanger, through utilizing according to the utility model discloses heat transfer fin 100 of first aspect embodiment has advantages such as low in manufacturing cost and heat transfer are effectual.
Other constructions and operations of the heat exchanger fin 100 and the heat exchanger plate having the same according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (15)
1. A heat exchange fin is characterized by comprising a body, wherein the body is provided with a plurality of heat exchange holes, each heat exchange hole penetrates through the body in the thickness direction of the body, the body is provided with a first edge and a second edge, the first edge and the second edge extend in the length direction of the body and are oppositely arranged, a first concave portion is arranged on the first edge, a second concave portion is arranged on the second edge, and at least a part of the first concave portion and/or the second concave portion is in circular arc transition.
2. The heat exchange fin according to claim 1, wherein the first recesses are plural and arranged at intervals along the length direction of the body; the second concave parts are multiple and arranged at intervals along the length direction of the body.
3. the heat exchange fin according to claim 2, wherein the first and second concavities are each configured in a V-shape, and the width of the first concavity gradually increases in a direction away from the center of the body, and the width of the second concavity gradually increases in a direction away from the center of the body.
4. The heat exchange fin of claim 1, wherein at least a portion of the first rim and the second rim are complementary in shape.
5. The heat exchange fin according to claim 1, wherein at least one of the first recess and the second recess is provided with a first cuff.
6. The heat exchange fin according to claim 1, wherein a plurality of the heat exchange holes are arranged at intervals in a plurality of groups along the length direction of the body, and the heat exchange holes in each group are arranged at intervals along the width direction of the body.
7. The heat exchange fin according to claim 6, wherein the first recess is located between two adjacent heat exchange holes near the first edge; the second concave part is positioned between two adjacent heat exchange holes close to the second edge.
8. The heat exchange fin according to claim 6, wherein the heat exchange holes have an elliptical shape, and the major axis direction of the elliptical shape is parallel to the width direction of the body.
9. The heat exchange fin as claimed in claim 6, wherein at least one turbulating hole is provided between two adjacent sets of the heat exchange holes, and the turbulating hole is located between two adjacent heat exchange holes in the width direction of the body.
10. The heat exchange fin according to claim 9, wherein the area of the turbulating hole is smaller than the area of the heat exchange hole.
11. The heat exchange fin according to claim 9, wherein the shape of the turbulent flow holes is circular or elliptical.
12. The heat exchange fin according to claim 9, wherein at least one of the heat exchange hole and the turbulent flow hole is provided with a second burring extending circumferentially thereof.
13. The heat exchange fin according to claim 1, wherein the body has a third edge and a fourth edge extending in the width direction and arranged oppositely, and at least one of the third edge and the fourth edge is provided with a third flanging.
14. The heat exchange fin according to claim 13, wherein the third edge is provided with a third concave portion, the fourth edge is provided with a fourth concave portion, and the contour lines of the third concave portion and the fourth concave portion are each formed in a concave arc shape.
15. A heat exchanger, characterized by comprising the heat exchange fin according to any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822240214.2U CN209783373U (en) | 2018-12-28 | 2018-12-28 | heat exchange fin and heat exchanger with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822240214.2U CN209783373U (en) | 2018-12-28 | 2018-12-28 | heat exchange fin and heat exchanger with same |
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| Publication Number | Publication Date |
|---|---|
| CN209783373U true CN209783373U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822240214.2U Active CN209783373U (en) | 2018-12-28 | 2018-12-28 | heat exchange fin and heat exchanger with same |
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| CN (1) | CN209783373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137750A (en) * | 2020-01-19 | 2021-07-20 | 芜湖美的厨卫电器制造有限公司 | Heat exchanger fin, heat exchanger and water heater |
-
2018
- 2018-12-28 CN CN201822240214.2U patent/CN209783373U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137750A (en) * | 2020-01-19 | 2021-07-20 | 芜湖美的厨卫电器制造有限公司 | Heat exchanger fin, heat exchanger and water heater |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220921 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Wan Chun East Road, East District, Wuhu economic and Technological Development Zone, Anhui Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. |
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| TR01 | Transfer of patent right |