Water nozzle, liquid cooling assembly with water nozzle, battery pack box body and battery pack

Abstract

The embodiment of the utility model provides a water nozzle, a liquid cooling assembly with the water nozzle, a battery pack box body and a battery pack. The water nozzle comprises a water nozzle base, the water nozzle base comprises a base body and a cover plate, the base body and the cover plate are arranged in a split mode, a cavity is formed in the base body, a first cold liquid opening, a second cold liquid opening and an opening which are communicated with the cavity are formed in the base body, and the cover plate is arranged on the opening in a covering mode. The side, provided with the first cold liquid opening, of the base body can be attached to a liquid cooling plate so that the cavity can be communicated with the interior of the liquid cooling plate. Therefore, the problem of poor leakproofness caused by intersection of a welding seam between the plugging head and the liquid cooling plate and a welding seam between the water nozzle and the liquid cooling plate can be avoided. Therefore, the water nozzle provided by the embodiment of the utility model has the advantage of being beneficial to improving the leakproofness of the liquid cooling plate assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a water nozzle and a liquid cooling component with the water nozzle, a battery pack box and a battery pack. Background Art

[0002] The cruising range of electric vehicles depends on the energy density of the power battery, that is, the greater the energy density, the longer the cruising range of the electric vehicle. The space utilization rate inside the battery pack with high energy density is relatively higher. As a result, the welding space of the nozzle on the liquid cooling plate of the battery pack is getting smaller and smaller.

[0003] In the related art, the liquid cooling assembly is integrated at the bottom of the shell. The liquid cooling assembly generally includes a liquid cooling plate with an open end, which is sealed by a plugging head so that the water nozzle structure can be connected to the external cooling circulation structure. When the water nozzle is fixed and sealed, the periphery of the contact surface between the water nozzle and the liquid cooling assembly needs to be sealed. The sealing line at this point often intersects with the sealing between the plugging head and the liquid cooling plate. Multiple sealing processes at the overlap of the sealing track can easily lead to poor airtightness. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the utility model provides a water nozzle. The water nozzle has the advantage of helping to improve the airtightness of the liquid cooling plate assembly.

[0005] The embodiment of the utility model further provides a liquid cooling component.

[0006] The embodiment of the utility model further provides a battery pack box.

[0007] An embodiment of the present invention further provides a battery pack.

[0008] The faucet of the utility model embodiment includes a faucet base, and the faucet base includes a seat body and a cover plate which are separately arranged. The seat body has a cavity inside, and the seat body is provided with a first cold liquid port, a second cold liquid port and an open port which are connected to the cavity. The cover plate is covered on the open port, and a side of the seat body having the first cold liquid port is in contact with a liquid cooling plate so that the cavity is connected to the interior of the liquid cooling plate.

[0009] The water faucet of the utility model embodiment is formed by dividing the base of the water faucet into a seat body and a cover plate, and when sealing the seat body and the liquid cooling plate, the seat body can be first sealed and connected to the liquid cooling plate, and then the welding pen can be directly inserted into the vicinity of the first cold liquid port through the opening to seal from the inside, avoiding the connection seam between the plugging head and the liquid cooling plate. The connection seam between the water faucet and the liquid cooling plate is misaligned with the connection seam between the plugging head and the liquid cooling plate. This helps to avoid the problem of sealing failure caused by the overlap and intersection of the connection seams. As a result, the sealing performance of the connection between the water faucet and the liquid cooling plate is effectively improved.

[0010] Therefore, the water nozzle of the embodiment of the utility model has the advantage of improving the airtightness of the connection between the water nozzle and the liquid cooling plate.

[0011] In some embodiments, the first cooling liquid port and the opening are arranged opposite to each other in a first direction, and the area of ​​the base body where the first cooling liquid port is opened is connected to the liquid cooling plate through a first welding layer.

[0012] In some embodiments, the cover plate includes a cover plate body and a positioning protrusion, wherein the positioning protrusion extends from one side of the cover plate body in the thickness direction toward the inside of the cavity along the first direction, and the cover plate body is connected to the open portion of the seat body through a second welding layer.

[0013] In some embodiments, the free end of the positioning protrusion abuts against the inner wall surface of the cavity.

[0014] In some embodiments, there are a plurality of positioning protrusions, and the plurality of positioning protrusions are spaced apart at the edge of the cover body.

[0015] In some embodiments, the water nozzle further includes a liquid cooling pipe, which is disposed on the seat body and communicated with the second cold liquid port, and the liquid cooling pipe protrudes outward from the seat body.

[0016] The liquid cooling assembly of an embodiment of the utility model includes a liquid cooling plate, a sealing head and a water nozzle according to any one of the above-mentioned methods, wherein the liquid cooling plate has an end to be sealed, the sealing head is sealed on the end to be sealed, the liquid cooling plate has a cold plate liquid port on one side close to the end to be sealed, and the area of ​​the seat body having the first cold liquid port is connected to the liquid cooling plate through a third welding layer.

[0017] In some embodiments, the orthographic projections of the cold plate liquid ports all fall within the orthographic projections of the first cold liquid ports, an annular step surface is formed between the inner wall surface of the first cold liquid port and the side wall of the liquid cold plate, and the third welding layer is formed on the step surface.

[0018] In some embodiments, the base body includes a first section and a second section which are connected in sequence, the cross-sectional area of ​​the first section is larger than the cross-sectional area of ​​the second section, on the side where the base body is connected to the cover plate, the first section and the second section are arranged flush, and on the side where the base body is connected to the liquid cooling plate, a limiting step surface is formed at the connection between the first section and the second section, the first section abuts against the sealing head, and the second section is arranged on one side of the first direction of the liquid cooling plate.

[0019] In some embodiments, a limiting notch is provided on the sealing head, and the first section is embedded in the limiting notch.

[0020] The battery pack case of the embodiment of the utility model includes any of the liquid cooling components described above.

[0021] The battery pack of the embodiment of the present invention includes the battery pack box described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of a battery pack box according to an embodiment of the present utility model.

[0023] Figure 2 yes Figure 1 Enlarged view at A.

[0024] Figure 3 It is a three-dimensional diagram of a liquid cooling assembly according to an embodiment of the utility model.

[0025] Figure 4 yes Figure 3 Enlarged view at B.

[0026] Figure 5 It is a partial exploded view of the liquid cooling assembly of the embodiment of the utility model.

[0027] Figure 6 It is another partial exploded view of the liquid cooling assembly of the embodiment of the utility model.

[0028] Figure 7 yes Figure 6 Enlarged view at C.

[0029] Figure 8 This is another stereoscopic view of the liquid cooling assembly of an embodiment of the utility model, omitting the cover plate.

[0030] Fig. 9 yes Figure 8 Enlarged view at D.

[0031] Fig.10 It is a three-dimensional diagram of a water nozzle according to an embodiment of the utility model.

[0032] Fig.11It is a three-dimensional diagram of a cover plate according to an embodiment of the utility model.

[0033] Fig.12 It is a front view of a faucet according to an embodiment of the utility model.

[0034] Fig.13 yes Fig.12 Sectional view along line EE.

[0035] Reference numerals:

[0036] Battery pack box 1000;

[0037] Water nozzle 100; liquid cooling plate 200; plugging head 300; limiting notch 301; third welding layer 400;

[0038] Faucet base 1; seat body 11; first section 111; second section 112;

[0039] First cooling liquid port 101; open port 102; limiting step surface 103;

[0040] Cover plate 12; cover plate body 121; positioning protrusion 122;

[0041] Liquid cooling tube 2; limiting protrusion 21;

[0042] First welding layer 3;

[0043] The second solder layer 4. DETAILED DESCRIPTION

[0044] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0045] Reference below Figure 1-Figure 11 The faucet base 1 of the embodiment of the utility model and the liquid cooling assembly having the faucet base 1, the battery pack box 1000 and the battery pack are described.

[0046] The faucet base 1 of the utility model embodiment includes a faucet base 1 base, and the faucet base 1 base includes a seat body 11 and a cover plate 12 which are separately arranged. The seat body 11 has a cavity inside, and the seat body 11 is provided with a first cold liquid port 101, a second cold liquid port and an open port 102 which are connected to the cavity. The cover plate 12 is covered on the open port 102. The side of the seat body 11 having the first cold liquid port 101 can be fitted with the liquid cooling plate 200 to connect the cavity with the inside of the liquid cooling plate 200.

[0047] The faucet base 1 of the utility model embodiment is divided into a base body 11 and a cover plate 12, and when sealing the base body 11 and the liquid cooling plate 200, the base body 11 can be first sealed and connected to the liquid cooling plate 200, and then the welding pen is directly inserted into the vicinity of the first cold liquid port 101 through the opening 102, and sealed from the inside to avoid the connection seam between the plugging head 300 and the liquid cooling plate 200. The connection seam between the faucet base 1 and the liquid cooling plate 200 is misaligned with the connection seam between the plugging head 300 and the liquid cooling plate 200. This helps to avoid the problem of sealing failure caused by the overlap and intersection of the connection seams. As a result, the sealing performance of the connection between the faucet base 1 and the liquid cooling plate 200 is effectively improved.

[0048] Therefore, the faucet base 1 of the embodiment of the utility model has the advantage of improving the airtightness of the connection between the faucet base 1 and the liquid cooling plate 200 .

[0049] It is understandable that one of the first cold liquid port 101 and the second cold liquid port is a liquid inlet, and the other of the first cold liquid port 101 and the second cold liquid port is a liquid outlet. That is, the faucet base 1 can be connected to the liquid inlet or the liquid outlet of the liquid cooling plate 200.

[0050] like Figure 3 and Figure 4 As shown, the first cooling liquid port 101 and the opening 102 are arranged along a first direction (eg, Figure 3 The upper and lower directions shown in the figure, that is, the thickness direction of the liquid cooling plate 200 are relatively arranged, and the area where the first cold liquid port 101 is opened in the base body 11 is connected to the liquid cooling plate 200 through the first welding layer 3.

[0051] The faucet base 1 of the utility model embodiment can make the welding pen directly extend to the first cold liquid port 101 by arranging the first cold liquid port 101 and the open port 102 opposite to each other in the first direction, so as to further improve the convenience of the welding pen in the welding process.

[0052] Furthermore, the opening 102 and the first cooling liquid port 101 are arranged opposite to each other in the thickness direction of the cooling plate 200, and the projection of the first cooling liquid port 101 along the first direction falls within the projection of the opening 102 along the first direction, that is, the opening 102 is larger than the size of the first cooling liquid port 101. Thus, the first cooling liquid port 101 can be better exposed, so as to further improve the convenience of soldering pen operation.

[0053] In addition, the plugging head 300 and the liquid cooling plate 200 are generally sealed by welding. When welding is used for sealing connection, the weld between the faucet base 1 and the liquid cooling plate 200 and the weld between the plugging head 300 and the liquid cooling plate 200 overlap, and multiple welding at the overlapping welding tracks will increase the risk of sealing failure. The use of the faucet base 1 structure can effectively avoid the risk of sealing failure.

[0054] like Figure 7 , Fig. 9 and Fig.11 As shown, the cover plate 12 includes a cover plate body 121 and a positioning protrusion 122 . The positioning protrusion 122 extends from one side of the cover plate body 121 in the thickness direction along the first direction toward the inside of the cavity. The cover plate body 121 is connected to the opening 102 of the seat body 11 through the second welding layer 4 .

[0055] The faucet base 1 of the utility model embodiment is divided into a cover plate body 121 and a positioning protrusion 122 arranged on one side of the thickness of the cover plate body 121 through the cover plate 12. Before the connection is sealed, the cover plate 12 can be guided and positioned by the positioning protrusion 122, thereby improving the convenience of installation.

[0056] like Figure 7 , Fig. 9 and Fig.11 As shown, the free end of the positioning protrusion 122 abuts against the inner wall surface of the cavity.

[0057] The faucet base 1 of the embodiment of the utility model, by abutting the free end of the positioning protrusion 122 against the inner wall surface of the cavity, relies on the positioning protrusion 122 to limit the installation position of the cover plate 12 in the circumferential direction and the thickness direction, and no deviation occurs during the process of welding to form the second welding layer 4. Therefore, the faucet base 1 helps to further improve the airtightness after welding.

[0058] like Figure 7 , Fig. 9 and Fig.11 As shown, there are a plurality of positioning protrusions 122 , and the plurality of positioning protrusions 122 are arranged at intervals at the edge of the cover body 121 .

[0059] The faucet base 1 of the utility model embodiment is provided with a plurality of positioning protrusions 122 arranged at intervals at the edge of the cover plate body 121. Thus, the positioning protrusions 122 can be circumferentially positioned to prevent the cover plate 12 from shifting, thereby helping to improve the stability of the cover plate 12.

[0060] Alternatively, if Figure 7 and Fig.11 As shown, there may be four positioning protrusions 122 , the cover body 121 is in a quadrilateral shape, and the positioning protrusions 122 are correspondingly arranged at the corners of the cover body 121 .

[0061] Furthermore, the length of the positioning protrusion 122 can be changed according to the structure inside the cavity, and the free end of the positioning protrusion 122 only needs to abut against the inner wall surface of the cavity on the side where the first cooling liquid port 101 is set.

[0062] like Figures 7 to 13As shown, the faucet base 1 of the utility model embodiment further includes a liquid cooling pipe 2, which is disposed on the seat body 11 and is connected to the second cold liquid port, and the liquid cooling pipe 2 protrudes outward from the seat body 11.

[0063] The faucet base 1 of the embodiment of the utility model is conveniently connected to the temperature control pipe of the vehicle by disposing the liquid cooling pipe 2 protruding from the base body 11, thereby helping to improve the convenience of the installation operation.

[0064] Optionally, a limiting protrusion 21 is provided on the outer peripheral surface of the liquid cooling tube 2 to limit and seal the pipe fittings connected thereto.

[0065] like Figures 1 to 6 As shown, the liquid cooling component of the embodiment of the utility model includes a liquid cooling plate 200, a sealing head 300 and a faucet base 1 according to any of the above items, the liquid cooling plate 200 has an end to be sealed, the sealing head 300 is sealed on the end to be sealed, the liquid cooling plate 200 has a cold plate liquid port on one side close to the end to be sealed, and the area of ​​the seat body 11 having the first cold liquid port 101 is connected to the liquid cooling plate 200 through a third welding layer 400.

[0066] Therefore, the liquid cooling assembly of the embodiment of the utility model has the advantage of good sealing performance.

[0067] Optionally, the plugging head 300 blocks one side of the liquid cooling plate 200 in the length and / or width direction, and the liquid cooling plate 200 has a liquid inlet and a liquid outlet on one side in the first direction, and the liquid inlet and / or the liquid outlet are arranged corresponding to the first cold liquid port 101 in the first direction of the liquid cooling plate 200. Figures 1 to 4 As shown, the liquid cooling plate 200 has a length direction (eg, Figure 3 A plugging head 300 is provided on one side of the liquid cooling plate 200 (the front-to-back direction shown in FIG), and the liquid cooling tube 2 extends outwardly toward one side along the length direction of the liquid cooling plate 200.

[0068] like Figure 8 and Fig. 9 As shown, the orthographic projections of the cold plate liquid ports all fall within the orthographic projection of the first cold liquid port 101, an annular step surface is formed between the inner wall surface of the first cold liquid port 101 and the side wall of the liquid cold plate 200, and the third welding layer 400 is formed on the step surface. It can be understood that the caliber of the cold plate liquid port is smaller than the caliber of the first cold liquid port 101.

[0069] The liquid cooling assembly of the embodiment of the utility model makes the orthographic projection of the cold plate liquid port fall within the orthographic projection of the first cold liquid port 101 through the parts, and forms an annular step surface between the inner wall surface of the first cold liquid port 101 and the side wall of the liquid cooling plate 200, and the third welding layer 400 is formed on the step surface. In addition, an attachment surface is provided for the formation of the third welding layer 400. The connection area between the third welding layer 400 and the side wall of the liquid cooling plate 200 is increased, which helps to further improve the welding tightness.

[0070] like Figure 4 , Fig.10 and Fig.13 As shown, the base body 11 includes a first section 111 and a second section 112 which are connected in sequence, the cross-sectional area of ​​the first section 111 is larger than the cross-sectional area of ​​the second section 112, on the side where the base body 11 is connected to the cover plate 12, the first section 111 and the second section 112 are arranged flush, and on the side where the base body 11 is connected to the liquid cooling plate 200, a limiting step surface 103 is formed at the connection between the first section 111 and the second section 112, the first section 111 abuts against the sealing head 300, and the second section 112 is arranged on one side of the first direction of the liquid cooling plate 200.

[0071] The liquid cooling assembly of the utility model embodiment is divided into a first section 111 and a second section 112 which are connected in sequence through the seat body 11. The first section 111 and the second section 112 are connected to form a limiting step surface 103. The first section 111 abuts against the plugging head 300, which can adjust the position of the faucet base 1 relative to the length direction of the cold plate liquid ( Figure 3 The liquid cooling assembly of the embodiment of the utility model is helpful to improve the welding efficiency.

[0072] In addition, the area of ​​the base body 11 where the first cold liquid port 101 is opened is connected to the liquid cooling plate 200 through the first welding layer 3, and it is no longer necessary to perform circumferential sealing along the base body 11 (the weld track is a three-dimensional structure, and the welding track is complicated), and only the circumference of the first cold liquid port 101 needs to be sealed, which simplifies the welding track. Therefore, the liquid cooling assembly of the embodiment of the utility model improves the airtightness of welding.

[0073] like Figure 7 and Fig. 9 As shown, the plugging head 300 is provided with a limiting notch 301, and the first section 111 is embedded in the limiting notch 301. Thus, the seat body 11 can be adjusted along the width direction of the cold plate liquid ( Figure 3 The first cold liquid port 101 and the cold plate liquid port are positioned in the left and right directions as shown in the figure, thereby achieving complete correspondence between the positions of the first cold liquid port 101 and the cold plate liquid port. As a result, the liquid cooling assembly of the embodiment of the utility model further improves the welding efficiency.

[0074] The battery pack case 1000 of the embodiment of the present invention includes a liquid cooling assembly according to any one of the above items.

[0075] Therefore, the battery pack case 1000 of the embodiment of the present invention has the advantage of good airtightness.

[0076] The battery pack of the embodiment of the present invention may include the battery pack case 1000 described above.

[0077] Therefore, the battery pack of the embodiment of the utility model has the advantage of good airtightness.

[0078] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0079] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0080] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0082] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0083] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A faucet, characterized in that: include: A faucet base, the faucet base includes a base body and a cover plate which are separately arranged, the base body has a cavity inside, and the base body is provided with a first cold liquid port, a second cold liquid port and an open port which are connected to the cavity, the cover plate is arranged on the open port, and the side of the base body having the first cold liquid port can be attached to the liquid cooling plate to make the cavity communicate with the interior of the liquid cooling plate.

2. The faucet according to claim 1, characterized in that: The first cooling liquid port and the opening are arranged opposite to each other in a first direction, and the area of ​​the seat body where the first cooling liquid port is provided is connected to the liquid cooling plate through a first welding layer.

3. The faucet according to claim 2, characterized in that: The cover plate includes a cover plate body and a positioning protrusion, wherein the positioning protrusion extends from one side of the cover plate body in the thickness direction toward the inside of the cavity along the first direction, and the cover plate body is connected to the open portion of the seat body through a second welding layer.

4. The faucet according to claim 3, characterized in that: The free end of the positioning protrusion abuts against the inner wall surface of the cavity; And / or, there are multiple positioning protrusions, and the multiple positioning protrusions are arranged at intervals on the edge of the cover body.

5. The faucet according to any one of claims 1 to 4, characterized in that: It also includes a liquid cooling pipe, which is arranged on the seat body and is connected to the second cold liquid port. The liquid cooling pipe protrudes outward from the seat body.

6. A liquid cooling component, characterized in that: It comprises a liquid cooling plate, a sealing head and a water nozzle according to any one of claims 1 to 5, the liquid cooling plate having an end to be sealed, the sealing head sealing on the end to be sealed, the liquid cooling plate having a cold plate liquid port on one side close to the end to be sealed, and the area of ​​the seat body having the first cold liquid port is connected to the liquid cooling plate through a third welding layer.

7. The liquid cooling assembly according to claim 6, characterized in that: The orthographic projections of the cold plate liquid ports all fall within the orthographic projection of the first cold liquid port, an annular step surface is formed between the inner wall surface of the first cold liquid port and the side wall of the liquid cold plate, and the third welding layer is formed on the step surface; And / or, the base body includes a first section and a second section which are connected in sequence, the cross-sectional area of ​​the first section is larger than the cross-sectional area of ​​the second section, on the side where the base body is connected to the cover plate, the first section and the second section are arranged flush, on the side where the base body is connected to the liquid cooling plate, a limiting step surface is formed at the connection between the first section and the second section, the first section abuts against the sealing head, and the second section is arranged on one side of the first direction of the liquid cooling plate.

8. The liquid cooling assembly according to claim 7, characterized in that: The sealing head is provided with a limiting notch, and the first section is embedded in the limiting notch.

9. A battery pack box, characterized in that: Comprising a liquid cooling assembly according to any one of claims 6-8.

10. A battery pack, characterized in that: Comprising a battery pack case according to claim 9.

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