CN211455896U - Battery liquid cooling structure and power battery - Google Patents
Battery liquid cooling structure and power battery Download PDFInfo
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- CN211455896U CN211455896U CN201922277208.9U CN201922277208U CN211455896U CN 211455896 U CN211455896 U CN 211455896U CN 201922277208 U CN201922277208 U CN 201922277208U CN 211455896 U CN211455896 U CN 211455896U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a battery liquid cooling structure and power battery, the battery liquid cooling structure includes the liquid cooling board that is established on the box, the liquid cooling board is equipped with the liquid cooling pipeline, the box includes bottom plate, frame, the frame is located the one side of bottom plate and encloses and closes in the edge of bottom plate; the liquid cooling plate is integrated, fixed on the frame and clamped between the frame and the bottom plate. The utility model discloses with the quantity that the liquid cooling board design was the integral connected spare parts such as liquid cooling board and screw that have reduced, make the box more be convenient for assemble, improved the installation effectiveness, also improved the mechanical strength of box.
Description
Technical Field
The utility model belongs to the technical field of power battery, concretely relates to battery liquid cooling structure and power battery.
Background
The power battery is used as an energy storage device and is a core component of an electric automobile, the performance of the power battery directly affects the market application of the electric automobile and the acceptance of common consumers, the working temperature environment of a battery cell is a crucial factor affecting the service life of the battery cell, so that the temperature control of a battery system is required, a scheme of heating by a heater and natural heat dissipation (without refrigeration) is usually adopted, or a scheme of heating and refrigeration by a liquid cooling plate is adopted, and along with the development of new energy automobiles, the power battery basically has two modes of refrigeration and heating, so that all the battery systems are in transition to a scheme of heating and refrigeration by the liquid cooling plate at present.
The design mode of the existing liquid cooling system structure in the battery is usually as follows: the structure of the lower box body is designed firstly, and then the liquid cooling plate and the liquid cooling pipeline are designed in the lower box body, so that the designed structure has the following defects:
firstly, in order to ensure the structural strength of the lower box body, reinforcing ribs are usually arranged in the lower box body and distributed on the bottom surface in the lower box body, so that the liquid cooling plates have to be correspondingly designed into a plurality of blocks which are mutually separated, the manufacturing cost of the liquid cooling plates is increased, a plurality of parts are needed, and the temperature control between the separated liquid cooling plates is also influenced;
two, when packing into each battery module in the box, the polylith liquid cooling board is arranged between battery module and lower box bottom, need align the mounting point of module, each liquid cooling board, lower box three one by one and just can install in place, this degree of difficulty that can increase the battery system equipment has prolonged man-hour.
Patent document No. 201810904964.7 discloses a liquid cooling plate, a power battery pack structure and an assembling method, wherein a plurality of liquid cooling plate mounting areas are arranged on a lower box body, each liquid cooling plate mounting area is provided with a plurality of liquid cooling plate fixing mechanisms, and the liquid cooling plates are respectively mounted in the liquid cooling plate mounting areas on the lower box body and are fixed by the liquid cooling plate fixing mechanisms. The liquid cooling plate in the scheme is a traditional structure which is fixed in the lower box body in a segmented mode, and has the problems of high production cost and inconvenience in assembly of the parts.
Disclosure of Invention
The utility model aims at providing a battery liquid cooling structure and power battery aims at solving the problem that liquid cooling board piecemeal equipment is also inconvenient at the inside spare part of box in current power battery many, equipment.
In order to achieve the above object, the present invention provides a battery liquid cooling structure, which includes a liquid cooling plate disposed on a box body, wherein the liquid cooling plate is provided with a liquid cooling pipeline, the box body includes a bottom plate and a frame, and the frame is disposed on one side of the bottom plate and surrounds the edge of the bottom plate; the liquid cooling plate is integrated, fixed on the frame and clamped between the frame and the bottom plate.
Preferably, the reinforcing ribs are distributed on the inner side of the frame and are arranged above the liquid cooling plate.
Preferably, the reinforcing rib is straight strip-shaped and comprises a plurality of reinforcing ribs which are parallel to each other, and the liquid cooling plate is fixed on the reinforcing rib through a first bolt.
Preferably, the size of the liquid cooling plate is smaller than that of the bottom plate, and the bottom plate is welded with the outer edge of the frame.
Preferably, the bottom plate and the frame are made of aluminum profiles.
Preferably, the liquid cooling pipe is disposed inside the liquid cooling plate.
Preferably, the liquid cooling plate is provided with a liquid inlet and a liquid outlet which are communicated with the liquid cooling pipeline, the liquid inlet is connected with a liquid inlet pipeline, and the liquid outlet is connected with a liquid outlet pipeline.
Preferably, a flow blocking block is arranged in the liquid cooling pipeline.
The utility model also provides a power battery, include the box and locate the battery module in the box, be equipped with above-mentioned arbitrary one in the box battery liquid cooling structure.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect:
compared with the existing battery liquid cooling structure, the liquid cooling plate is designed into an integral type, so that the number of connecting parts such as the liquid cooling plate and screws is reduced; when the liquid cooling plate is installed, the whole liquid cooling plate is clamped between the frame and the bottom plate for fixing, so that the liquid cooling plate is more convenient to install, and the assembly efficiency is improved; the temperature control system of the battery system only needs to collect the temperature of one liquid cooling plate, so that the temperature rise and temperature difference conditions of the battery system can be better controlled, and the battery modules at various positions in the box body can be more conveniently controlled to be at the same temperature; and, because the liquid cooling board of integral type has certain mechanical strength, the liquid cooling board is in the same place with the bottom plate laminating, has improved the mechanical strength of lower box.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a structural diagram of a battery liquid cooling structure according to an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a top view of the liquid cooling structure of the battery shown in FIG. 1 after the frame and the liquid cooling plate are connected;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
fig. 5 is a sectional view a-a in fig. 2.
The reference numbers of the utility model explain:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
2 | |
| 11 | |
3 | Rims |
| 12 | Through |
31 | Reinforcing |
| 13 | Liquid inlet | 4 | |
| 14 | Liquid outlet | 5 | |
| 15 | |
6 | First bolt |
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The utility model provides a battery liquid cooling structure and power battery.
Referring to fig. 1 to 5, the battery liquid cooling structure includes a liquid cooling plate 1, the liquid cooling plate 1 is disposed on the box, the liquid cooling plate 1 is provided with a liquid cooling pipeline 11, and the battery module in the box dissipates heat through the liquid cooling pipeline 11. The box body consists of a lower box body and an upper box cover, wherein the lower box body is in a groove shape formed by a bottom plate 2 and a frame 3. The liquid cooling plate 1 is formed into an integral type, the bottom plate 2 and the frame 3 of the lower box body are separated, the liquid cooling plate 1 is clamped between the bottom plate 2 and the frame 3, and then the frame 3 is fixedly connected with the liquid cooling plate 1 and the bottom plate 2.
Therefore, compared with the existing battery liquid cooling structure, the liquid cooling plate 1 is designed into an integral type, so that the number of the liquid cooling plate 1, screws and other connecting parts is reduced; when the liquid cooling plate 1 is installed, the whole liquid cooling plate 1 is clamped between the frame 3 and the bottom plate 2 for fixing, so that the liquid cooling plate 1 is more convenient to install, and the assembly efficiency is improved; the temperature control system of the battery system only needs to collect the temperature of one liquid cooling plate 1, so that the temperature rise and temperature difference conditions of the battery system can be better controlled, and the battery modules at various positions in the box body can be more conveniently controlled to be at the same temperature; in addition, the integral liquid cooling plate 1 has certain mechanical strength, and the liquid cooling plate 1 is attached to the bottom plate 2, so that the mechanical strength of the lower box body is improved.
Specifically, in the present embodiment, the reinforcing ribs 31 are connected to the inner side of the frame 3 to improve the overall structural strength of the lower case. In conventional implementation mode, due to the existence of the reinforcing ribs, the liquid cooling plates are required to be installed above the plurality of reinforcing ribs, the connection, fixation and stability of the liquid cooling plates are ensured, and the installation operation is inconvenient. In the embodiment, the reinforcing ribs 31 and the frame 3 are welded into a whole, and then the liquid cooling plate 1 is directly connected between the frame 3 and the bottom plate 2, so that the installation is more convenient and more stable.
Further, the reinforcing ribs 31 are straight bars, and a plurality of parallel reinforcing ribs 31 are connected between two opposite sides of the frame 3; the reinforcing ribs 31 and the frame 3 are made of extruded aluminum profiles, and have the advantages of high strength and light weight; every strengthening rib 31 is equipped with a plurality of screw fixation holes, and it has a plurality of through-holes 12 to open on the liquid cooling plate 1, through-hole 12 and screw fixation hole one-to-one, and liquid cooling plate 1 is fixed on the strengthening rib through first bolt 6.
Because liquid cooling plate 1 adopts the aluminium alloy to make, aluminum alloy's liquid cooling plate 1 itself also has certain mechanical strength, can bear certain internal stress, the top of liquid cooling plate 1 is hugged closely completely with 3 strengthening ribs 31 of frame, the below and the bottom plate 2 of liquid cooling plate 1 are hugged closely, liquid cooling plate 1 plays the structure supporting role simultaneously with bottom plate 2 together, the structural strength of box has been strengthened, satisfy the structural strength that the national standard required, can also reduce the thickness of bottom plate 2, thereby reduce the holistic weight of box.
Further, the liquid cooling pipeline 11 is arranged inside the liquid cooling plate 1, a liquid inlet 13 and a liquid outlet 14 which are communicated with the liquid cooling pipeline 11 are arranged on the liquid cooling plate 1, the liquid inlet 13 is connected with a liquid inlet pipeline 4, the liquid outlet 14 is connected with a liquid outlet pipeline 5, and the liquid inlet pipeline 4 and the liquid outlet pipeline 5 are in pipeline connection with a vehicle compressor to exchange cold and hot liquid; the liquid cooling plate 1 is flat, and the area size of the liquid cooling plate 1 is slightly smaller than that of the frame 3. Due to the adoption of the liquid cooling structure of the battery, the assembly steps of the lower box body are as follows: firstly, assembling and welding the reinforcing ribs 31 and the frame 3; then, the liquid cooling plate 1 is arranged in the frame 3 from the right lower part of the frame 3, and screws penetrate through the liquid cooling plate 1 and are fixed on the reinforcing ribs 31; then, the bottom plate 2 is opposite to the frame 3, and the edge of the bottom plate 2 is completely connected with the outer edge of the frame 3 in a full welding mode; finally, the liquid inlet pipeline 4 is connected into the liquid inlet 13, and the liquid outlet pipeline 5 is connected into the liquid outlet 14, so that the lower box body is installed.
Because the existence of liquid cooling pipeline 11, liquid cooling plate 1 has certain thickness, has increased a bit with the time and the operation degree of difficulty of bottom plate 2 welding at frame 3 slightly, but does not influence the technology management and control that whole box was made, owing to establish liquid cooling plate 1 in frame 3 bottom the greatly reduced box PACK assemble time, consequently overall speaking still can reduce the assemble time of box to a great extent.
Further, referring to fig. 5 again, the liquid cooling pipeline 11 is disposed in the liquid cooling plate 1, the cooling liquid enters from the liquid inlet 13 and flows along the direction indicated by the arrow, and a plurality of flow blocking blocks 15 are disposed in the liquid cooling pipeline 11 for adjusting the flow rate of the cooling liquid to adjust the temperature difference inside the battery system, so that the temperature of the liquid cooling structure is balanced.
The utility model also provides a power battery, including the box with locate the battery module in the box, be equipped with above-mentioned arbitrary in the box battery liquid cooling structure, the concrete structure of battery liquid cooling structure refers to above-mentioned embodiment, because power battery has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects of the technical scheme of above-mentioned embodiment equally, no longer the repeated description herein.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (9)
1. A battery liquid cooling structure comprises a liquid cooling plate (1) arranged on a box body, wherein the liquid cooling plate (1) is provided with a liquid cooling pipeline (11), and the battery liquid cooling structure is characterized in that the box body comprises a bottom plate (2) and a frame (3), wherein the frame (3) is arranged on one surface of the bottom plate (2) and surrounds the edge of the bottom plate (2); the liquid cooling plate (1) is of an integral type, and the liquid cooling plate (1) is fixed on the frame (3) and clamped between the frame (3) and the bottom plate (2).
2. The liquid cooling structure of claim 1, wherein the frame (3) has reinforcing ribs (31) disposed on the inner side thereof, and the reinforcing ribs (31) are disposed above the liquid cooling plate (1).
3. The liquid cooling structure of claim 2, wherein the reinforcing rib (31) is a straight bar and comprises a plurality of ribs arranged in parallel, and the liquid cooling plate (1) is fixed on the reinforcing rib (31) through a first bolt (6).
4. The battery liquid cooling structure of claim 3, wherein the size of the liquid cooling plate (1) is smaller than the size of the bottom plate (2), and the bottom plate (2) is welded to the outer edge of the frame (3).
5. The liquid cooling structure for battery cells according to any of claims 1 to 4, wherein the bottom plate (2) and the frame (3) are made of aluminum profiles.
6. The battery liquid cooling structure according to any of the claims 1 to 4, characterized in that the liquid cooling ducts (11) are arranged inside the liquid cooling plate (1).
7. The liquid cooling structure for the battery according to claim 6, wherein the liquid cooling plate (1) is provided with a liquid inlet (13) and a liquid outlet (14) which are communicated with the liquid cooling pipeline (11), the liquid inlet (13) is connected with a liquid inlet pipeline (4), and the liquid outlet (14) is connected with a liquid outlet pipeline (5).
8. The liquid cooling structure of claim 7, wherein a choke (15) is disposed in the liquid cooling conduit (11).
9. A power battery is characterized by comprising a box body and a battery module arranged in the box body, wherein the battery liquid cooling structure of any one of claims 1 to 8 is arranged in the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922277208.9U CN211455896U (en) | 2019-12-18 | 2019-12-18 | Battery liquid cooling structure and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922277208.9U CN211455896U (en) | 2019-12-18 | 2019-12-18 | Battery liquid cooling structure and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211455896U true CN211455896U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922277208.9U Active CN211455896U (en) | 2019-12-18 | 2019-12-18 | Battery liquid cooling structure and power battery |
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| CN (1) | CN211455896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784354A (en) * | 2022-04-11 | 2022-07-22 | 中创新航科技股份有限公司 | Battery device, assembly method and assembly equipment thereof, and battery assembly positioning tool |
-
2019
- 2019-12-18 CN CN201922277208.9U patent/CN211455896U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784354A (en) * | 2022-04-11 | 2022-07-22 | 中创新航科技股份有限公司 | Battery device, assembly method and assembly equipment thereof, and battery assembly positioning tool |
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Effective date of registration: 20230426 Granted publication date: 20200908 |
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