Battery packs and electrical equipment

Abstract

The present disclosure relates to a battery pack and an electrical device, wherein the battery pack includes a tray, a cold plate and an adapter, wherein the tray includes a side beam, the cold plate is provided with a cooling nozzle, the adapter is connected to the side beam, the adapter is formed with a cooling channel and provided with a docking port, the docking port is opposite to the outer side of the side beam, and the cooling channel connects the cooling nozzle and the docking port. Through the above technical solution, the battery pack provided by the present disclosure can avoid the cold plate from scratching the structural adhesive during installation, which is conducive to improving the space utilization of the battery pack.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery packs, and in particular, to a battery pack and an electrical device. Background Art

[0002] In the related art, the side beam of the battery tray is provided with an opening, and the water nozzle of the cold plate is installed in the opening and connected to the medium source. When the cold plate is arranged above the battery cell, a seal needs to be set between the sealing cover and the side beam, and there needs to be space for placing compressed foam above the cold plate water nozzle joint. The cold plate water nozzle needs to be installed in a bend. During assembly, the movement of the cold plate is easy to scratch the structural glue above the battery cell, resulting in unstable connection of the battery cell and occupying a large space. Summary of the invention

[0003] The purpose of the present disclosure is to provide a battery pack and an electrical device, wherein the battery pack can prevent a cold plate from scratching the structural adhesive during installation, thereby helping to improve the space utilization of the battery pack.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a battery pack, which includes a tray, a cold plate and an adapter, the tray includes a side beam, the cold plate is provided with a cooling water nozzle, the adapter is connected to the side beam, the adapter is formed with a cooling flow channel and is provided with a docking port, the docking port is opposite to the outer side surface of the side beam, and the cooling flow channel connects the cooling water nozzle and the docking port.

[0005] Optionally, the side beam is provided with a through opening, the adapter is connected to the through opening and partially extends to the outside of the side beam, or the adapter is arranged outside the side beam, and the adapter is connected to the cooling water nozzle through the through opening.

[0006] Optionally, the adapter is connected to the through opening and partially extends to the outside of the side beam, and the cooling channel includes at least a first channel and a second channel, the first channel and the second channel are interconnected, and the first channel is sealed with the cooling water nozzle, and the second channel is connected to the docking port and is arranged at an angle to the first channel.

[0007] Optionally, the adapter includes a first part and a second part, the first part is connected to the second part at an angle, the first part is formed with the first flow channel and a fitting surface, the fitting surface is fitted with the cooling water nozzle and sealed with the cooling water nozzle, and the second part is formed with the second flow channel and the docking port.

[0008] Optionally, the battery pack includes a first sealing member, at least one of the fitting surface and the cooling water nozzle is provided with a first receiving groove, and the first sealing member is arranged in the first receiving groove and is located between the fitting surface and the cooling water nozzle.

[0009] Optionally, the battery pack includes a second seal, the cooling water nozzle is connected to the side of the cold plate facing the bottom of the tray, the fitting surface is parallel to the side of the cold plate facing the bottom of the tray, the cooling water nozzle includes a nozzle body and a nozzle joint, the nozzle joint extends perpendicular to the nozzle body and is provided with a second accommodating groove, the second accommodating groove is recessed radially inward along the nozzle joint, the second seal is arranged in the second accommodating groove and interferes with the flow channel wall of the first flow channel.

[0010] Optionally, the battery pack includes a second seal, the cooling water nozzle is connected to the side of the cold plate facing the bottom of the tray, the fitting surface is arranged at an angle to the side of the cold plate facing the bottom of the tray, the cooling water nozzle includes a nozzle body and a nozzle joint, the nozzle joint extends obliquely to the nozzle body and is provided with a second accommodating groove, the second accommodating groove is recessed radially inwardly along the nozzle joint, the second seal is arranged in the second accommodating groove, and interferes with the flow channel wall of the first flow channel.

[0011] Optionally, the adapter is welded to the side beam.

[0012] Optionally, the adapter is arranged outside the side beam, and the adapter includes an adapter body and an adapter joint that are connected to each other, and the adapter joint extends from the through opening into the side beam to dock with the cooling water nozzle.

[0013] Optionally, the battery pack includes a third seal, which is sleeved on the adapter connector and sealed with the cooling water nozzle.

[0014] Optionally, the cooling water nozzle is formed with a third accommodating groove and a mating surface that fits with the adapter body, the third accommodating groove is recessed from the mating surface away from the adapter body, and the adapter body fits with the mating surface through the through opening to press the third seal against the third accommodating groove.

[0015] Optionally, the adapter joint is provided with a third accommodating groove, the third accommodating groove is recessed radially inwardly of the adapter joint, and the third sealing member is arranged in the third accommodating groove and abuts against an inner wall of the cooling water nozzle.

[0016] Optionally, the cooling water nozzle includes an adapter seat and a connecting seat, the cooling water nozzle forms a heat exchange flow channel, the heat exchange flow channel includes a first flow path and a second flow path, the first flow path extends along the height direction of the battery pack, the second flow path is connected to the first flow path and is arranged at an angle to the first flow path, the connecting seat is connected to the adapter seat and installed on the side beam, the adapter is attached to the connecting seat and is connected to the first flow path through the second flow path.

[0017] Optionally, the battery pack includes a first fastener, the connecting seat is provided with a first mounting hole, the side beam is provided with a second mounting hole connected to the first mounting hole, and the first fastener passes through the second mounting hole and is fastened to the first mounting hole.

[0018] Optionally, the battery pack includes a fourth seal, the connecting seat is provided with a fourth accommodating groove and has a mating surface that fits with the side beam, the fourth accommodating groove is recessed away from the side beam from the mating surface, the fourth seal is accommodated in the fourth accommodating groove and is arranged around the first mounting hole, and the fourth seal is in contact with the side beam.

[0019] Optionally, the battery pack includes a second fastener, the adapter body is provided with a third mounting hole, and the second fastener passes through the third mounting hole and is fastened to the side beam.

[0020] Optionally, the cooling water nozzle is formed with a heat exchange channel, which extends along the height direction of the battery pack. The adapter body includes a first part and a second part connected at an angle. The adapter joint is connected to the first part, and the second part is provided with the docking port.

[0021] Optionally, the cooling channel includes a third channel, a fourth channel and a fifth channel, the third channel extends along the height direction of the battery pack and is connected to the heat exchange channel, the fourth channel extends parallel to the third channel and is connected to the docking port, and the fifth channel connects the third channel and the fourth channel.

[0022] Optionally, the side beam forms an accommodating space for accommodating the adapter and has a first wall and a second wall, the first wall is parallel to the cold plate, the second wall is connected to the first wall and is perpendicular to the cold plate, the cooling water nozzle is connected to the first wall and sealed with the first wall, and the first part and the second part are respectively connected to the first wall and the second wall.

[0023] Optionally, the battery pack includes a third fastener, the cooling water nozzle is provided with a fourth mounting hole, the first wall is provided with a fifth mounting hole connected to the fourth mounting hole, and the third fastener passes through the fifth mounting hole and is fastened to the fourth mounting hole.

[0024] Optionally, the battery pack includes a fifth seal, the cooling water nozzle is provided with a fifth accommodating groove and has a mating surface that fits with the first wall, the fifth accommodating groove is recessed from the mating surface away from the first wall, the fifth seal is accommodated in the fifth accommodating groove and is arranged around the fourth mounting hole, and the fifth seal fits with the first wall.

[0025] Optionally, the battery pack includes a fourth fastener and a fifth fastener, and the first part and the second part are connected to the first wall and the second wall respectively through the fourth fastener and the fifth fastener.

[0026] Optionally, the adapter is formed with two cooling channels and is provided with two docking ports, the cooling water nozzle is formed with two heat exchange channels, and each heat exchange channel is connected to the corresponding docking port through the corresponding cooling channel.

[0027] On the basis of the above solution, the present disclosure further provides an electrical device, including the above battery pack.

[0028] Through the above technical solution, in the battery pack disclosed in the present invention, an adapter is installed on the side beam of the tray, the adapter is formed with a cooling channel and is provided with a docking port, the docking port is opposite to the outer side surface of the side beam, so that the cooling water nozzle can be connected with the external cooling source through the adapter, and during the assembly process of the cold plate, the cold plate does not need to be moved multiple times to connect the cooling water nozzle with the external cooling source, and the cold plate can be directly assembled into the battery pack to connect the cooling water nozzle with the cooling channel, thereby preventing the cold plate from scratching the structural adhesive and affecting the stability of the battery cell connection, which is beneficial to improving the space utilization of the battery pack.

[0029] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0031] Figure 1 is a schematic structural diagram of a battery pack provided by a first embodiment of the present disclosure;

[0032] Figure 2 is a cross-sectional view of a battery pack provided in a first embodiment of the present disclosure;

[0033] Figure 3 is a schematic diagram of the three-dimensional structure of the adapter in the battery pack provided by the first embodiment of the present disclosure;

[0034] Figure 4 is a schematic diagram of the three-dimensional structure of a cooling water nozzle in a battery pack provided by the first embodiment of the present disclosure;

[0035] Figure 5 is a partial structural schematic diagram of a battery pack provided in a second embodiment of the present disclosure;

[0036] Figure 6 is a cross-sectional view of a battery pack provided in a second embodiment of the present disclosure;

[0037] Figure 7 is a schematic diagram of the three-dimensional structure of an adapter in a battery pack provided by a second embodiment of the present disclosure;

[0038] Figure 8 is a schematic diagram of the three-dimensional structure of a cooling water nozzle in a battery pack provided by a second embodiment of the present disclosure;

[0039] Fig. 9 is a partial structural schematic diagram of a battery pack provided in a third embodiment of the present disclosure;

[0040] Fig.10 is a cross-sectional view of a battery pack provided in a third embodiment of the present disclosure;

[0041] Fig.11 is a schematic diagram of the three-dimensional structure of an adapter in a battery pack provided by a third embodiment of the present disclosure;

[0042] Fig.12 is a schematic diagram of the three-dimensional structure of a cooling water nozzle in a battery pack provided by a third embodiment of the present disclosure;

[0043] Fig.13 is a partial structural schematic diagram of a battery pack provided in a fourth embodiment of the present disclosure;

[0044] Fig.14 is a cross-sectional view of a battery pack provided in a fourth embodiment of the present disclosure;

[0045] Fig.15 is a schematic diagram of the three-dimensional structure of an adapter in a battery pack provided by a fourth embodiment of the present disclosure;

[0046] Fig.16 It is a schematic diagram of the three-dimensional structure of a cooling water nozzle in a battery pack provided in the fourth embodiment of the present disclosure.

[0047] Description of Reference Numerals

[0048] 1-tray; 11-side beam; 110-accommodation space; 111-through port; 112-second mounting hole; 120-first wall; 130-second wall; 2-cold plate; 3-adapter; 31-third seal; 4-cooling nozzle; 41-nose body; 42-nose joint; 422-second accommodation groove; 424-third accommodation groove; 426-fourth mounting hole; 43-matching surface; 44-adapter seat; 45-connecting seat; 451-first mounting hole; 452-fourth accommodation groove; 5-adapter; 51-first part ; 52-second part; 53-fitting surface; 531-first accommodating groove; 54-first sealing member; 55-second sealing member; 56-third mounting hole; 57-adapter body; 58-fifth accommodating groove; 10-cooling channel; 101-third channel; 102-fourth channel; 103-fifth channel; 20-docking port; 30-first channel; 40-heat exchange channel; 401-first channel; 402-second channel; 50-second channel; 6-fifth sealing member; 7-fourth sealing member; 8-sealing cover; 9-battery cell. DETAILED DESCRIPTION

[0049] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0050] In the present disclosure, unless otherwise stated, the directional word "outside" used is defined based on the battery cell 9, the side of the side beam 11 close to the battery cell 9 is the "inside", and the side of the side beam 11 away from the battery cell 9 is the "outside". In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another, and do not have order and importance. In the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be construed as limitations on the present disclosure.

[0051] According to an exemplary embodiment of the present disclosure, referring to Figures 1 to 16 As shown in the figure, a battery pack is provided, which includes a tray 1, a cold plate 2 and an adapter 5. The tray 1 includes a side beam 11, the cold plate 2 is provided with a cooling water nozzle 4, the adapter 5 is connected to the side beam 11, the adapter 5 is formed with a cooling channel 10 and is provided with a docking port 20, the docking port 20 is opposite to the outer side surface of the side beam 11, and the cooling channel 10 connects the cooling water nozzle 4 and the docking port 20.

[0052] Through the above technical solution, in the battery pack disclosed in the present invention, an adapter 5 is installed on the side beam 11 of the tray 1, and the adapter 5 is formed with a cooling channel 10 and is provided with a docking port 20, and the docking port 20 is opposite to the outer side surface of the side beam 11, so that the cooling water nozzle 4 can be connected with the external cooling source through the adapter 5. During the assembly process of the cold plate 2, the cold plate 2 does not need to be moved multiple times to connect the cooling water nozzle 4 with the external cooling source. The cold plate 2 is directly assembled into the battery pack to connect the cooling water nozzle 4 with the cooling channel 10, thereby preventing the cold plate 2 from scratching the structural adhesive and affecting the stability of the connection of the battery cell 9, which is beneficial to improving the space utilization of the battery pack.

[0053] In the present disclosure, the cooling water nozzle 4 is arranged on the side of the cold plate 2 facing the bottom of the tray 1. Through the above design, during assembly, the cold plate 2 is moved in the vertical direction, i.e., in the direction toward the bottom of the tray 1, to be installed on the top surface of the battery cell 9 or the top of the side beam 11, and no secondary movement is required, thereby avoiding scratching of the structural adhesive. Compared with the solution in the prior art that the cold plate needs to be moved in the vertical direction, i.e., in the direction toward the bottom of the tray 1, and then moved in the direction perpendicular to the outer side surface of the side beam 11 to connect the cooling water nozzle with the external cooling source, the present disclosure does not need to reserve space for multiple movements, thereby improving space utilization.

[0054] In the present disclosure, the adapter 5 can be assembled with the side beam 11 in any suitable manner.

[0055] According to an exemplary embodiment provided by the present disclosure, the side beam 11 may be provided with a through opening 111. Figures 1 to 8 As shown in the figure, the adapter 5 is connected to the through opening 111 and partially extends to the outside of the side beam 11. That is, in this embodiment, the adapter 5 is arranged on the side of the side beam 11 facing the battery cell 9 and a portion of the adapter 5 passes through the through opening 111 and extends to the outside of the side beam 11, thereby facilitating the docking of the docking port 20 with an external cooling source (such as a cooling source for the entire vehicle).

[0056] According to other exemplary embodiments provided by the present disclosure, Figures 9 to 16 As shown in , the adapter 5 can be arranged on the outside of the side beam 11, and the adapter 5 is connected to the cooling water nozzle 4 through the through opening 111. That is, in this embodiment, the adapter 5 can partially pass through the through opening 111 and extend into the inner side of the side beam 11, thereby connecting with the cooling water nozzle 4.

[0057] The above two exemplary implementations will be described in detail below.

[0058] refer to Figures 1 to 8As shown in the figure, the adapter 5 is connected to the through port 111 and partially extends to the outside of the side beam 11. In order to facilitate the connection between the cooling water nozzle 4 and the adapter 5, the cooling channel 10 includes at least a first channel 30 and a second channel 50. The first channel 30 and the second channel 50 are connected to each other, and the first channel 30 and the cooling water nozzle 4 are sealed to achieve the sealing between the cooling water nozzle 4 and the adapter 5 to prevent the refrigerant from overflowing from between the cooling water nozzle 4 and the adapter 5. The second channel 50 is connected to the docking port 20 and is arranged at an angle to the first channel 30. That is, an angle is formed between the second channel 50 and the first channel 30. Through the connection between the second channel 50 and the docking port 20, the inlet and outlet of the cooling water nozzle 4 are connected to the docking port 20, and the docking port 20 is docked with the external cooling source, thereby achieving docking with the external cooling source at the outer side surface of the side beam 11. Therefore, during the assembly process, the cold plate 2 only needs to drive the cooling water nozzle 4 to be inserted into the accommodation space formed by the tray 1 and does not need to be moved, thereby avoiding the problem of scratching the structural adhesive due to the movement of the cold plate 2.

[0059] In the present disclosure, the second flow channel 50 is arranged at an angle to the first flow channel 30 to realize the conversion of the flow path of the cooling water nozzle 4, so as to facilitate the connection of the cooling water nozzle 4 with the docking port 20. Figure 2 As shown, the first flow channel 30 and the second flow channel 50 can be perpendicular to each other. Figure 6 As shown, the first flow channel 30 and the second flow channel 50 can also be arranged at an acute angle. Specifically, the angle between the first flow channel 30 and the second flow channel 50 can be set to a, wherein a can be any suitable angle in the range of 30° to 60°. Exemplarily, a can be 30°, 45° or 60°, and the present disclosure does not impose any limitation on this.

[0060] According to an exemplary embodiment of the present disclosure, referring to Figures 2 to 8 As shown in , the adapter 5 may include a first part 51 and a second part 52, the first part 51 and the second part 52 are connected at an angle, the first part 51 is formed with a first flow channel 30 and a fitting surface 53, the fitting surface 53 is fitted with the cooling water nozzle 4 and sealed with the cooling water nozzle 4, so as to achieve sealing at the interface between the cooling water nozzle 4 and the adapter 5, and further prevent the refrigerant from overflowing from between the cooling water nozzle 4 and the adapter 5, and the second part 52 is formed with a second flow channel 50 and a docking port 20, wherein the first flow channel 30 may extend perpendicularly to the fitting surface 53 to communicate with the second flow channel 50. In the above technical solution, the first part 51 and the second part 52 may be formed by integral processing, so as to ensure the integrity of the adapter 5 and improve the sealing effect. In addition, by providing the first part 51 and the second part 52 and connecting the first part 51 and the second part 52 at an angle, it is convenient to dock with the cooling water nozzle 4, and at the same time, it is convenient to extend the second part 52 through the through port 111 to the outside of the side beam 11, so as to achieve interface connection with the vehicle end.

[0061] According to an exemplary embodiment of the present disclosure, in order to facilitate the sealing of the interface between the cooling nozzle 4 and the adapter 5, reference Figure 2 and Figure 6 As shown in , the battery pack may include a first sealing member 54, at least one of the fitting surface 53 and the cooling water nozzle 4 is provided with a first receiving groove 531, and the first sealing member 54 is arranged in the first receiving groove 531 and is located between the fitting surface 53 and the cooling water nozzle 4. In the above technical solution, the first receiving groove 531 can be configured as an annular groove, and the first sealing member 54 can be configured as a sealing ring adapted to the annular groove, referring to Figure 3 As shown in , a first receiving groove 531 may be provided on the fitting surface 53, and a first sealing member 54 is arranged in the first receiving groove 531 and is located between the bottom wall of the first receiving groove 531 and the cooling water nozzle 4, for sealing the gap between the fitting surface 53 and the cooling water nozzle 4.

[0062] It is understandable that a first receiving groove 531 may also be provided on the cooling water nozzle 4 , and a first sealing member 54 is arranged in the first receiving groove 531 and located between the bottom wall of the first receiving groove 531 and the fitting surface 53 , for sealing the gap between the fitting surface 53 and the cooling water nozzle 4 .

[0063] In addition, first receiving grooves 531 may be correspondingly provided on the fitting surface 53 and the cooling water nozzle 4 , and a first sealing member 54 is arranged between two opposite first receiving grooves 531 to seal the gap between the fitting surface 53 and the cooling water nozzle 4 .

[0064] According to an exemplary embodiment of the present disclosure, referring to Figure 2 and Figure 3As shown in , the battery pack may include a second seal 55, the cooling water nozzle 4 is connected to the side of the cold plate 2 facing the bottom of the tray 1, the fitting surface 53 may be parallel to the side of the cold plate 2 facing the bottom of the tray 1, the cooling water nozzle 4 includes a nozzle body 41 and a nozzle joint 42, the nozzle joint 42 extends perpendicular to the nozzle body 41 and is provided with a second receiving groove, the second receiving groove is recessed radially inward along the nozzle joint 42, and the second seal 55 is arranged in the second receiving groove and contacts the flow channel wall of the first flow channel 30. In this way, when assembling, the cold plate 2 is kept parallel to the fitting surface 53, so that the nozzle joint 42 of the cooling water nozzle 4 is directly opposite to the first flow channel 30 and gradually approaches the first flow channel 30 until the cooling water nozzle 4 is in contact with the fitting surface 53, at which time, the nozzle joint 42 can be connected to the first flow channel 30, and the second seal 55 contacts the flow channel wall of the first flow channel 30, so as to realize the connection between the cooling water nozzle 4 and the adapter 5, and the installation is convenient. In addition, in order to further improve the reliability of the connection between the cooling water nozzle 4 and the adapter 5, a connecting member can be provided to fix the water nozzle body 41 and the first part 51 together, wherein the connecting member can be set as a screw or other structure that can achieve the purpose of fixing the water nozzle body 41 and the first part 51 together, and the present disclosure does not impose any restrictions on this.

[0065] Understandably, reference Figure 5 and Figure 6 As shown in , the fitting surface 53 can also be arranged at an angle with the side of the cold plate 2 facing the bottom of the tray 1. In the present disclosure, the battery pack can include a second seal 55. The cooling water nozzle 4 includes a water nozzle body 41 and a water nozzle joint 42. The water nozzle joint 42 extends obliquely to the water nozzle body 41 and is provided with a second receiving groove. The second receiving groove is recessed radially inward along the water nozzle joint 42. The second seal 55 is arranged in the second receiving groove and contacts the flow channel wall of the first flow channel 30. In this way, when assembling, the human eye can observe the angle of view parallel to the fitting surface 53 and follow the extension direction of the fitting surface 53. The surface of the water nozzle body 41 close to the water nozzle joint 42 is kept parallel to the fitting surface 53 before fitting and installing, which makes it easy to observe the position of the water nozzle joint 42 and the first flow channel 30. When the cold plate 2 is close to the adapter 5, the water nozzle joint 42 and the first part 51 can be accurately docked, which improves the convenience of installation.

[0066] To improve the reliability of the installation, refer to Figure 2 and Figure 6 As shown in , the adapter 5 can be welded to the side beam 11. In addition, the adapter 5 and the side beam 11 can also be processed as one piece. With this assembly method, the adapter 5 and the side beam 11 do not need to be sealed, thereby reducing parts and reducing the cost of the battery pack. In the method of welding the adapter 5 to the side beam 11, the portion of the adapter 5 extending outside the side beam 11 is welded to the side beam 11, thereby facilitating the assembly of the adapter 5 on the side beam 11.

[0067] According to another exemplary embodiment of the present disclosure, referring to Figures 9 to 16 As shown in , the adapter 5 can be arranged outside the side beam 11, and the adapter 5 includes an adapter body 57 and an adapter joint 3 connected to each other, and the adapter joint 3 extends from the through port 111 into the side beam 11 to dock with the cooling water nozzle 4. In the above technical solution, the adapter joint 3 and the adapter body 57 together form the cooling channel 10 and are connected to each other. By arranging the adapter 5 outside the side beam 11, the adapter 5 can be installed and fixed from the outside of the side beam 11, which is convenient for disassembly and assembly of the adapter 5, and also convenient for replacement of the adapter 5.

[0068] According to an exemplary embodiment of the present disclosure, referring to Fig.10 and Fig.11 As shown in , the battery pack may include a third seal 31 , which is sleeved on the adapter connector 3 and sealed with the cooling water nozzle 4 , and the sealing between the adapter connector 3 and the cooling water nozzle 4 is achieved by the third seal 31 .

[0069] In this embodiment, reference Fig.12 As shown in , the cooling water nozzle 4 may be formed with a third receiving groove 424 and a mating surface 43 that is in contact with the adapter body 57, the third receiving groove 424 is recessed from the mating surface 43 away from the adapter body 57, and the adapter body 57 is in contact with the mating surface 43 to press the third sealing member 31 against the third receiving groove 424. By such an arrangement, the third sealing member 31 can be in contact with the third receiving groove 424 and the adapter 5, thereby achieving sealing between the adapter 5 and the cooling water nozzle 4.

[0070] It can be understood that a third receiving groove 424 can also be provided on the adapter joint 3, and the third receiving groove 424 is recessed radially inwardly of the adapter joint 3. The third sealing member 31 is arranged in the third receiving groove 424 and abuts against the inner wall of the cooling water nozzle 4, so as to realize radial sealing between the adapter 5 and the cooling water nozzle 4, thereby achieving the same sealing effect.

[0071] According to an exemplary embodiment of the present disclosure, referring to Fig.10 and Fig.12As shown in , the cooling water nozzle 4 may include an adapter seat 44 and a connecting seat 45, the cooling water nozzle 4 is formed with a heat exchange flow channel 40, and when the heat exchange flow channel 40 includes a first flow path 401 and a second flow path 402, the first flow path 401 extends along the height direction of the battery pack, the second flow path 402 is connected to the first flow path 401 and is arranged at an angle to the first flow path 401, the connecting seat 45 is connected to the adapter seat 44 and installed on the side beam 11, the adapter 5 is attached to the connecting seat 45 and is connected to the first flow path 401 through the second flow path 402, thereby connecting to the cold plate 2. In the present disclosure, by providing the first flow path 401 and the second flow path 402, the second flow path 402 is arranged at an angle to the first flow path 401, and the flow direction of the heat exchange flow channel 40 can be changed inside the side beam 11. During assembly, the installation between the side beam 11 can be facilitated by the provision of the connecting seat 45.

[0072] According to an exemplary embodiment of the present disclosure, referring to Fig.12 As shown in , the battery pack may include a first fastener, the connection base 45 is provided with a first mounting hole 451, the side beam 11 is provided with a second mounting hole 112 communicating with the first mounting hole 451, and the first fastener passes through the second mounting hole 112 and is fastened to the first mounting hole 451. The first fastener may be a fastening member such as a screw or a bolt, and the first fastener passes through the second mounting hole 112 and is fastened to the first mounting hole 451 to fix the connection base 45 with the side beam 11, thereby improving the stability of the installation of the connection base 45 and facilitating disassembly and assembly.

[0073] According to the exemplary embodiments of the present disclosure, Fig.10 and Fig.12 As shown in , the battery pack may include a fourth sealing member 7, the connection seat 45 is provided with a fourth receiving groove 452 and has a mating surface 43 that fits the side beam 11, the fourth receiving groove 452 is recessed from the mating surface 43 away from the side beam 11, and the fourth sealing member 7 is accommodated in the fourth receiving groove 452 and fits the side beam 11. By providing the fourth sealing member 7, the gap between the connection seat 45 and the side beam 11 is sealed. Here, the fourth sealing member 7 can be constructed as a sealing ring, there are multiple first fasteners, and the multiple first fasteners are distributed around the periphery of the through-port 111. The fourth sealing member 7 is arranged around the first mounting hole 451, thereby preventing external impurities (such as water stains, dust, etc.) from entering the interior of the battery pack from the first fastener, which is conducive to improving the sealing of the battery pack. In addition, the first mounting hole 451 is set as a blind hole, so that it can further prevent impurities such as water stains, dust, etc. on the outside of the side beam 11 from entering the battery pack through the connection gap of the first fastener and the gap between the connection seat 45 and the side beam 11.

[0074] According to an exemplary embodiment of the present disclosure, referring to Fig.10 and Fig.11As shown in , in order to facilitate the installation between the adapter 5 and the side beam 11, the battery pack may include a second fastener, and the adapter body 57 is provided with a third mounting hole 56, and the second fastener is fastened to the side beam 11 through the third mounting hole 56. In this way, the adapter 5 is installed on the side beam 11 through the second fastener, which improves the reliability of the installation of the adapter 5 and facilitates the disassembly and assembly of the adapter 5. Among them, the second fastener can be a fastening member such as a screw or a bolt. In addition, the number of the second fasteners can be one, two or more, and the present disclosure does not limit it.

[0075] According to an exemplary embodiment of the present disclosure, referring to Figures 13 to 16 As shown in , the cooling water nozzle 4 is formed with a heat exchange channel 40, and the heat exchange channel 40 can extend along the height direction of the battery pack. The adapter 5 includes an adapter body 57, and the adapter body 57 includes a first part 51 and a second part 52 connected at an angle. The adapter joint 3 is connected to the first part 51, and the second part 52 is provided with a docking port 20. By connecting the first part 51 and the second part 52 at an angle, the adapter joint 3 and the docking port 20 have different orientations. In this way, during assembly, the adapter joint 3 is connected to the heat exchange channel 40, and the heat exchange channel 40 is connected to the docking port 20 through the cooling channel 10. The docking port 20 can be connected to the interface of the vehicle end. The cold plate 2 only needs to be placed on the tray 1 along the height direction of the battery pack without the need for secondary movement, thereby avoiding the problem of scratching the structural adhesive due to the movement of the cold plate 2.

[0076] According to an exemplary embodiment of the present disclosure, referring to Fig.14 As shown in , the cooling channel 10 includes a third channel 101, a fourth channel 102 and a fifth channel 103. The third channel 101 extends along the height direction of the battery pack and is connected to the heat exchange channel 40. The fourth channel 102 extends parallel to the third channel 101 and is connected to the docking port 20. The fifth channel 103 is connected to the third channel 101 and the fourth channel 102. By such an arrangement, the heat exchange channel 40 passes through the third channel 101, the fifth channel 103, the fourth channel 102 in sequence and is connected to the docking port 20, which not only realizes the connection between the heat exchange channel 40 and the docking port 20, but also ensures the position requirement of the docking port 20, that is, the docking port 20 is directly opposite to the outer side of the side beam 11, so that the docking port 20 can be connected to the interface at the vehicle end.

[0077] In this disclosure, reference is made to Fig.13 and Fig.14As shown in the figure, the side beam 11 is formed with a receiving space 110 for receiving the adapter 5 and has a first wall 120 and a second wall 130, the first wall 120 is parallel to the cold plate 2, the second wall 130 is connected to the first wall 120 and is perpendicular to the cold plate 2, the cooling water nozzle 4 is connected to the first wall 120 and is sealed with the first wall 120, and the first part 51 and the second part 52 are respectively connected to the first wall 120 and the second wall 130. In this way, the adapter 5 is installed at the receiving space 110, and the first part 51 and the second part 52 are respectively connected to the first wall 120 and the second wall 130, which improves the compactness of the structure, reduces the path between the heat exchange channel 40 and the docking port 20, and improves the heat exchange efficiency of the cold plate 2.

[0078] According to an exemplary embodiment of the present disclosure, referring to Figures 14 to 16 As shown in , the battery pack may include a third fastener, the cooling water nozzle 4 is provided with a fourth mounting hole 426, the first wall 120 is provided with a fifth mounting hole connected to the fourth mounting hole 426, and the third fastener passes through the fifth mounting hole and is fastened to the fourth mounting hole 426. The first wall 120 is fixedly connected to the cooling water nozzle 4 by the third fastener, which ensures the reliability of the connection and facilitates the disassembly and assembly of the cooling water nozzle 4 and the adapter 5.

[0079] According to an exemplary embodiment of the present disclosure, referring to Fig.14 As shown in , the battery pack may include a fifth seal 6, the cooling water nozzle 4 is provided with a fifth receiving groove 58 and has a mating surface 43 that fits with the first wall 120, the fifth receiving groove 58 is recessed from the mating surface 43 away from the first wall 120, the fifth seal 6 is accommodated in the fifth receiving groove 58 and is arranged around the fourth mounting hole 426, and the fifth seal 6 fits with the first wall 120. In the above technical solution, the fifth seal 6 is used for sealing between the cooling water nozzle 4 and the first wall 120 of the side beam 11, and the sealing purpose is achieved by arranging the fifth receiving groove 58 on the first wall 120, accommodating the fifth seal 6 in the fifth receiving groove 58 and fitting with the cooling water nozzle 4. In addition, the fifth receiving groove 58 can be arranged on the cooling water nozzle 4 and the first wall 120 opposite to each other, so that the fifth seal 6 is accommodated between two opposite fifth receiving grooves 58, so as to play an axial sealing role for the cooling water nozzle 4 and the side beam 11. Here, the fifth sealing member 6 is configured as a sealing ring, and there are multiple third fasteners, which are distributed around the periphery of the through opening 111. The fifth sealing member 6 is arranged around the fourth mounting hole 426, thereby preventing external impurities (such as water stains, dust, etc.) from entering the interior of the battery pack from the third fasteners, which is beneficial to improving the sealing of the battery pack. Among them, the fifth mounting hole is configured as a blind hole, so that water stains, dust, and other impurities outside the side beam 11 can be prevented from entering the battery pack through the connection gap of the third fastener and the gap between the first wall 120 and the cooling nozzle 4.

[0080] In addition, a sealing member may be sleeved on the adapter joint 3 so that the sealing member contacts the inner side wall of the cooling water nozzle 4 to seal the gap between the cooling water nozzle 4 and the adapter joint 3 .

[0081] According to an exemplary embodiment of the present disclosure, referring to Figures 13 to 15 As shown in , the battery pack may include a fourth fastener and a fifth fastener, and the first part 51 and the second part 52 are connected to the first wall 120 and the second wall 130 respectively through the fourth fastener and the fifth fastener. In this way, the first part 51 is connected to the first wall 120 through the fourth fastener, and the second part 52 is connected to the second wall 130 through the fifth fastener, which ensures the reliability of the connection between the adapter 5 and the side beam 11. At the same time, the first part 51 can be more closely fitted to the first wall 120, and similarly, the second part 52 can be more closely fitted to the second wall 130, so as to perform positioning and installation, and ensure that the cooling water nozzle 4 and the adapter joint 3 are accurately docked.

[0082] According to an exemplary embodiment of the present disclosure, referring to Figures 1 to 16 As shown in , the adapter 5 is formed with two cooling channels 10 and is provided with two docking ports 20, and the cooling water nozzle 4 is formed with two heat exchange channels 40, and each heat exchange channel 40 is connected with the corresponding docking port 20 through the corresponding cooling channel 10. Through such an arrangement, the liquid outlet and liquid inlet of the internal channel of the cold plate 2 can be connected with the two heat exchange channels 40 of the cooling water nozzle 4 respectively, and the two docking ports 20 are used to connect with the liquid inlet pipe and the liquid outlet pipe of the vehicle end respectively, so as to discharge the cooling medium in the internal channel of the cold plate 2 or add the cooling medium to the internal channel of the cold plate 2 through the vehicle end, so as to realize the heat exchange of the cold plate 2.

[0083] It should be noted that in order to improve the heat exchange efficiency of the cold plate 2, the number of heat exchange channels 40 can be increased. For example, the number of heat exchange channels 40 can be set to three or more, so that one of the heat exchange channels 40 can be connected to the liquid inlet end of the internal channel and used as a liquid inlet channel, and the remaining heat exchange channels 40 can be connected to the liquid outlet end of the internal channel and used as liquid outlet channels. Multiple liquid outlet channels can eventually converge into the same liquid outlet channel so as to be connected to the cooling channel 10.

[0084] On the basis of the above technical solution, the present disclosure further provides an electric device, including the above battery pack. The electric device provided by the present disclosure also has the above characteristics, which will not be described here in order to avoid repetition.

[0085] refer to Figures 1 to 16 As shown in , the specific installation method of the embodiment of the present disclosure is:

[0086] When the adapter 5 is configured to partially extend out of the side beam 11, the adapter 5 can be welded and fixed to the side beam 11 or formed integrally with the side beam 11. After the cold plate 2 is placed above the battery cell 9, the faucet joint 42 is just docked with the first flow channel 30 to connect the cooling water nozzle 4 with the first flow channel 30, so that the cooling water nozzle 4 is connected with the docking port 20 through the first flow channel 30 and the second flow channel 50. In this embodiment, the cooling water nozzle 4 can be fixedly connected to the first part 51 by a fastener. In order to ensure the sealing performance of the connection, a first sealing member 54 can be provided between the cooling water nozzle 4 and the first part 51 of the adapter 5 (i.e., the part perpendicular to the cold plate 2 in the figure) or a second sealing member 55 can be sleeved on the faucet joint 42, so that after the faucet joint 42 is docked with the first flow channel 30, the second sealing member 55 contacts the flow channel wall of the first flow channel 30 to achieve a sealing effect.

[0087] The adapter 5 is arranged on the outside of the side beam 11, and when the heat exchange flow channel 40 includes a first flow path 401 and a second flow path 402, the cooling water nozzle 4 includes an adapter seat 44 and a connecting seat 45. The adapter seat 44 is set according to the position of the through port 111. During installation, the fourth seal 7 is installed in the fourth accommodating groove 452, the connecting seat 45 is opposite to the through port 111 on the side beam 11, and the fourth seal 7 is in contact with the side beam 11. The first fastener is passed through the corresponding second mounting hole 112 and fastened to the corresponding first mounting hole 451 to fix the connecting seat 45 and the side beam 11. The fourth seal 7 is in contact with the fourth accommodating groove 452 and the side beam 11, and plays a sealing role to prevent water stains, dust and other impurities on the outside of the side beam 11 from entering the battery pack through the connecting gap of the first fastener and the gap between the connecting seat 45 and the side beam 11. The adapter joint 3 of the adapter 5 is sealed with the cooling water nozzle 4 through the through opening 111 , and the adapter 5 is fixedly connected to the side beam 11 through the second fastener.

[0088] When the adapter 5 is arranged on the outside of the side beam 11 and the heat exchange channel 40 extends along the height direction of the battery pack, the fifth seal 6 is installed in the fifth receiving groove 58, and then the first wall 120 is fixedly connected to the cooling water nozzle 4 through the third fastener, and finally the adapter 5 and the side beam 11 are installed through the fourth fastener and the fifth fastener.

[0089] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0090] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0091] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A battery pack, characterized in that: The battery pack comprises a tray, a cold plate and an adapter, the tray comprises a side beam, the cold plate is provided with a cooling water nozzle, the adapter is connected to the side beam, the adapter is formed with a cooling channel and is provided with a docking port, the docking port is opposite to the outer side surface of the side beam, and the cooling channel connects the cooling water nozzle and the docking port; the side beam is provided with a through opening; the adapter is connected to the through opening and partially extends to the outside of the side beam, the cooling channel comprises at least a first channel and a second channel, the first channel and the second channel are connected to each other, and the first channel and the cooling water nozzle are sealed together, the second channel is connected to the docking port and is arranged at an angle to the first channel; the adapter comprises a first part and a second part, the first part is connected to the second part at an angle, the first part is formed with the first channel and a fitting surface, the fitting The surface is in contact with the cooling water nozzle and is sealed with the cooling water nozzle, and the second part is formed with the second flow channel and the docking port; the battery pack includes a first sealing member, and at least one of the fitting surface and the cooling water nozzle is provided with a first accommodating groove, and the first sealing member is arranged in the first accommodating groove and is located between the fitting surface and the cooling water nozzle; the battery pack includes a second sealing member, the cooling water nozzle is connected to the side of the cold plate facing the bottom of the tray, and the fitting surface is arranged at an angle to the side of the cold plate facing the bottom of the tray, the cooling water nozzle includes a nozzle body and a nozzle joint, the nozzle joint extends obliquely to the nozzle body, the nozzle joint is provided with a second accommodating groove, the second accommodating groove is recessed radially inwardly along the nozzle joint, and the second sealing member is arranged in the second accommodating groove and conflicts with the flow channel wall of the first flow channel.

2. The battery pack according to claim 1, characterized in that: The adapter is welded to the side beam.

3. The battery pack according to claim 1, characterized in that: The adapter is formed with two cooling channels and is provided with two docking ports, and the cooling water nozzle is formed with two heat exchange channels, and each heat exchange channel is connected with the corresponding docking port through the corresponding cooling channel.

4. A battery pack, characterized in that: The battery pack comprises a tray, a cold plate and an adapter, the tray comprises a side beam, the cold plate is provided with a cooling water nozzle, the adapter is connected to the side beam, the adapter forms a cooling flow channel and is provided with a docking port, the docking port is opposite to the outer side surface of the side beam, and the cooling flow channel connects the cooling water nozzle and the docking port; the cooling water nozzle is arranged on the side of the cold plate facing the bottom of the tray; the side beam is provided with a through opening; the adapter is arranged on the outside of the side beam, and the adapter comprises an adapter body and an adapter joint connected to each other, the adapter joint extends from the through opening into the side beam to dock with the cooling water nozzle; the battery pack comprises a third sealing member, the third sealing member is sleeved on the adapter joint and is sealed and fitted with the cooling water nozzle; the cooling water nozzle comprises an adapter seat and a connecting seat, the cooling water nozzle forms a heat exchange flow channel, and the heat exchange flow channel comprises a first flow path and a third flow path Two flow paths, the first flow path extends along the height direction of the battery pack, the second flow path is connected to the first flow path and is arranged at an angle to the first flow path, the connecting seat is connected to the adapter seat and is installed on the side beam, the adapter is in contact with the connecting seat and is connected to the first flow path through the second flow path; the battery pack includes a first fastener, the connecting seat is provided with a first mounting hole, the side beam is provided with a second mounting hole connected to the first mounting hole, the first fastener is fastened to the first mounting hole through the second mounting hole; the battery pack includes a fourth sealing member, the connecting seat is provided with a fourth accommodating groove and has a mating surface that is in contact with the side beam, the fourth accommodating groove is recessed from the mating surface away from the side beam, the fourth sealing member is accommodated in the fourth accommodating groove and is arranged around the first mounting hole, and the fourth sealing member is in contact with the side beam.

5. The battery pack according to claim 4, characterized in that: The cooling water nozzle is formed with a third receiving groove and a mating surface that fits with the adapter body. The third receiving groove is recessed from the mating surface away from the adapter body. The adapter body fits with the mating surface to press the third sealing member against the third receiving groove.

6. The battery pack according to claim 4, characterized in that: The adapter joint is provided with a third accommodating groove, which is recessed radially inwardly of the adapter joint. The third sealing member is arranged in the third accommodating groove and abuts against the inner wall of the cooling water nozzle.

7. The battery pack according to claim 4, characterized in that: The battery pack includes a second fastener, the adapter body is provided with a third mounting hole, and the second fastener passes through the third mounting hole and is fastened to the side beam.

8. The battery pack according to claim 4, characterized in that: The adapter is formed with two cooling channels and is provided with two docking ports, and the cooling water nozzle is formed with two heat exchange channels, and each heat exchange channel is connected with the corresponding docking port through the corresponding cooling channel.

9. A battery pack, characterized in that: The battery pack comprises a tray, a cold plate and an adapter, the tray comprises a side beam, the cold plate is provided with a cooling water nozzle, the adapter is connected to the side beam, the adapter forms a cooling flow channel and is provided with a docking port, the docking port is opposite to the outer side surface of the side beam, the cooling flow channel connects the cooling water nozzle and the docking port; the cooling water nozzle is arranged on the side of the cold plate facing the bottom of the tray; the side beam is provided with a through opening; the adapter is arranged on the outside of the side beam, and the adapter comprises an adapter body and an adapter joint connected to each other, the adapter joint extends from the through opening into the side beam to dock with the cooling water nozzle; the cooling water nozzle forms a heat exchange flow channel, the heat exchange flow channel extends along the height direction of the battery pack, the adapter body comprises a first part and a second part connected at an angle, the adapter joint is connected to the first part, and the second part is provided with the docking port; the side beam forms a accommodating space for accommodating the adapter and has a first wall and a second wall, the first wall and The cold plate is parallel, the second wall is connected to the first wall and is perpendicular to the cold plate, the cooling water nozzle is connected to the first wall and is sealed with the first wall, and the first part and the second part are respectively connected to the first wall and the second wall; the battery pack includes a third fastener, the cooling water nozzle is provided with a fourth mounting hole, the first wall is provided with a fifth mounting hole connected to the fourth mounting hole, and the third fastener is fastened to the fourth mounting hole through the fifth mounting hole; the battery pack includes a fifth sealing member, the cooling water nozzle is provided with a fifth accommodating groove and has a mating surface that fits with the first wall, the fifth accommodating groove is recessed from the mating surface away from the first wall, the fifth sealing member is accommodated in the fifth accommodating groove and is arranged around the fourth mounting hole, and the fifth sealing member is in contact with the first wall; a sealing member is sleeved on the adapter joint, and the sealing member conflicts with the inner side wall of the cooling water nozzle to seal the gap between the cooling water nozzle and the adapter joint.

10. The battery pack according to claim 9, characterized in that: The cooling channel includes a third channel, a fourth channel and a fifth channel. The third channel extends along the height direction of the battery pack and is connected to the heat exchange channel. The fourth channel extends parallel to the third channel and is connected to the docking port. The fifth channel connects the third channel and the fourth channel.

11. The battery pack according to claim 9, characterized in that: The battery pack includes a fourth fastener and a fifth fastener, and the first part and the second part are connected to the first wall and the second wall through the fourth fastener and the fifth fastener, respectively.

12. The battery pack according to claim 9, characterized in that: The adapter is formed with two cooling channels and is provided with two docking ports, and the cooling water nozzle is formed with two heat exchange channels, and each heat exchange channel is connected with the corresponding docking port through the corresponding cooling channel.

13. An electrical equipment, characterized in that: A battery pack comprising any one of claims 1-12.

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