Battery cell module, battery pack, and vehicle

Abstract

The application discloses a kind of electric core module, battery pack and vehicle, the electric core module includes: shell, the top surface of the shell is equipped with dismounting opening;At least one electric core, the electric core is detachably mounted in the shell by the dismounting opening;First temperature sensing element, the first temperature sensing element is connected with the electric core by the dismounting opening, for detecting the temperature of the side of the electric core close to the dismounting opening.The electric core module according to the application has the advantages of accurate temperature sampling, convenient sampling point arrangement, low production cost and good temperature guiding effect.

Description

Technical Field

[0001] This invention relates to the field of battery pack technology, and in particular to a cell module, a battery pack, and a vehicle. Background Technology

[0002] In related technologies, battery cell modules typically consist of a housing and a battery cell. The housing is open at both ends, and the battery cell is inserted into the housing from the end of the housing. Due to manufacturing tolerances, a certain gap must be maintained between the housing and the battery cell. This results in an air layer forming between the housing and the battery cell, leading to poor thermal conductivity between the housing and the battery cell. It also makes it difficult to arrange temperature sampling points on the battery cell. It is difficult to achieve both accurate temperature sampling and convenient sampling point placement. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a battery cell module that has advantages such as accurate temperature sampling, convenient sampling point arrangement, low production cost, and good thermal conductivity.

[0004] The present invention also proposes a battery pack having the above-mentioned cell module.

[0005] To achieve the above objectives, a battery cell module is provided according to a first aspect embodiment of the present invention, comprising: a housing, the top surface of which is provided with a disassembly port; at least one battery cell, the battery cell being detachably mounted in the housing through the disassembly port; and a first temperature sensing element, the first temperature sensing element being connected to the battery cell through the disassembly port, for detecting the temperature of the side of the battery cell near the disassembly port.

[0006] According to the battery cell module of the present invention, the battery cell is detachably installed on the housing through the disassembly port, and the battery cell can be attached to the bottom surface of the housing, thereby reducing the volume of the air layer between the battery cell and the housing, or there is almost no air layer between the battery cell and the housing, thus ensuring the thermal conductivity between the battery cell and the housing.

[0007] In addition, the first temperature sensing element is connected to the battery cell through the disassembly port and is used to detect the temperature of the side of the battery cell near the disassembly port. The temperature detection of the side of the battery cell near the disassembly port is more accurate and has a larger sample size to adapt to different usage environments.

[0008] The battery cell module according to the present invention has the advantages of accurate temperature sampling, convenient sampling point arrangement, low production cost and good temperature conduction effect.

[0009] According to some specific embodiments of the present invention, the bottom surface of the housing is provided with at least one temperature sensing opening, and the battery cell module further includes a second temperature sensing element, which is connected to the battery cell through the temperature sensing opening and is used to detect the temperature of the side of the battery cell near the temperature sensing opening.

[0010] According to some specific embodiments of the present invention, the side of the battery cell near the temperature sensing opening has a sealing edge, which protrudes from the temperature sensing opening.

[0011] According to some specific embodiments of the present invention, the temperature sensing openings are a plurality of openings spaced apart along the length of the housing, and the plurality of temperature sensing openings include end temperature sensing openings and intermediate temperature sensing openings; a plurality of battery cells arranged in series along the length of the housing are installed inside the housing, the outer ends of the series-connected head-end battery cells and / or tail-end battery cells protrude from the end temperature sensing openings, the inner ends of the series-connected head-end battery cells and / or tail-end battery cells and the two ends of the remaining battery cells protrude from the intermediate temperature sensing openings; the second temperature sensing element is connected to the plurality of battery cells through the plurality of temperature sensing openings and is used to detect the temperature of the side of the plurality of battery cells closest to the temperature sensing openings.

[0012] According to some specific embodiments of the present invention, the adjacent ends of two adjacent cells connected in series are exposed from the same intermediate temperature sensing opening.

[0013] According to some specific embodiments of the present invention, the battery cell module further includes: an end bus, the end bus being connected to the outer end of the head end battery cell and / or the tail end battery cell; and an intermediate bus, the intermediate bus being connected to the adjacent ends of two adjacent battery cells, the intermediate bus being provided with a clearance groove for placing the second temperature sensing element.

[0014] According to some specific embodiments of the present invention, the disassembly port is a fully open or semi-open opening, and at least one of the opposite sides of the housing that is in contact with the top surface does not have a solid sidewall in its entirety or upper half.

[0015] According to some specific embodiments of the present invention, the battery cell module further includes: a first thermal conductive element, which is filled between the bottom surface of the housing and the battery cell and avoids the temperature sensing opening.

[0016] According to some specific embodiments of the present invention, the battery cell module further includes: a first insulating member, which is disposed between the housing and the battery cell and avoids the disassembly port and the temperature sensing opening.

[0017] According to a second aspect of the present invention, a battery pack is provided, comprising: a tray; and a cell module according to a first aspect of the present invention, the cell module being disposed within the tray.

[0018] The battery pack according to the second aspect of the present invention, by utilizing the cell module according to the first aspect of the present invention, has the advantages of accurate temperature sampling, convenient sampling point arrangement, low production cost and good temperature conduction effect.

[0019] According to some specific embodiments of the present invention, the bottom plate of the tray is provided with a second insulating member, which is disposed between the tray and the housing and covers the disassembly port.

[0020] According to some specific embodiments of the present invention, the battery pack further includes: a cooling plate covering the bottom surface of the housing for cooling the cell module; and a third insulating member disposed between the cooling plate and the housing and sealing the temperature sensing opening.

[0021] According to some specific embodiments of the present invention, the third insulating element is an insulating tape that covers the temperature-sensing opening along the width direction of the tray.

[0022] According to some specific embodiments of the present invention, the battery pack further includes: a second heat-conducting element, the second heat-conducting element being filled between the cooling plate and the bottom surface of the housing.

[0023] According to a third aspect of the present invention, a vehicle is provided that uses a cell module as described in a first aspect of the present invention or a battery pack as described in a second aspect of the present invention.

[0024] The vehicle according to the third aspect embodiment of the present invention, by utilizing the cell module according to the first aspect embodiment of the present invention or the battery pack according to the second aspect embodiment of the present invention, has the advantages of accurate temperature sampling, convenient sampling point arrangement, low production cost and good temperature conduction effect.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a battery cell module according to an embodiment of the present invention.

[0027] Figure 2 This is a structural schematic diagram of a battery cell module according to an embodiment of the present invention from another perspective.

[0028] Figure 3 This is an exploded view of a battery cell module according to an embodiment of the present invention.

[0029] Figure 4 This is an exploded view of a battery cell module according to an embodiment of the present invention.

[0030] Figure 5 This is a cross-sectional view of a battery cell module according to an embodiment of the present invention.

[0031] Figure 6 This is a cross-sectional view of a battery cell module according to an embodiment of the present invention.

[0032] Figure 7 This is a schematic diagram of the housing of a battery cell module according to an embodiment of the present invention.

[0033] Figure 8 This is a structural schematic diagram of the housing of a battery cell module according to an embodiment of the present invention from another perspective.

[0034] Figure 9 This is a schematic diagram of the cooperation between the first temperature sensing element and the intermediate busbar of the battery cell module according to an embodiment of the present invention.

[0035] Figure 10 yes Figure 9 A magnified view of a portion of region A in the middle.

[0036] Figure 11 This is a schematic diagram of the cooperation between the second temperature sensing element and the intermediate busbar in a battery cell module according to an embodiment of the present invention.

[0037] Figure 12 yes Figure 10 A magnified view of a portion of region B in the middle.

[0038] Figure 13 This is a schematic diagram of the structure of a battery pack according to an embodiment of the present invention.

[0039] Figure 14 This is a cross-sectional view of a battery pack according to an embodiment of the present invention.

[0040] Figure 15 This is a schematic diagram of the structure of the cooling plate of the battery pack according to an embodiment of the present invention.

[0041] Figure 16 This is a schematic diagram of the structure of the tray of the battery pack according to an embodiment of the present invention.

[0042] Figure label: Battery cell module 1, battery pack 2, Housing 100, bottom surface 101, first side wall 102, second side wall 103, mounting cavity 104, disassembly / removal port 110, temperature sensing opening 120, end temperature sensing opening 121, middle temperature sensing opening 122, folded edge 130. Battery cell 200, edge sealing sharp corner 210, First temperature sensing element 300, second temperature sensing element 400, end busbar 500, intermediate busbar 600 First heat-conducting component 700, tray 800, second insulating component 810 Cooling plate 900, third insulating component 910, second heat-conducting component 920. Detailed Implementation

[0043] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] In the description of this invention, "a plurality of" means two or more.

[0046] The battery cell module 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0047] like Figures 1-12 According to an embodiment of the present invention, the battery module 1 includes a housing 100, at least one battery cell 200 and a first temperature sensing element 300.

[0048] The top surface of the housing 100 is provided with a disassembly port 110. The battery cell 200 is detachably installed on the housing 100 through the disassembly port 110. The first temperature sensing element 300 is connected to the battery cell 200 through the disassembly port 110 and is used to detect the temperature of the side of the battery cell 200 near the disassembly port 110.

[0049] According to the embodiment of the present invention, the battery cell module 1 has a disassembly port 110 on the top surface of the housing 100, through which the battery cell 200 is detachably installed on the housing 100. In this way, the battery cell 200 can fit against the bottom surface 101 of the housing 100, thereby reducing the volume of the air layer between the battery cell 200 and the housing 100, or there is almost no air layer between the battery cell 200 and the housing 100, thus ensuring the thermal conductivity between the battery cell 200 and the housing 100.

[0050] In addition, the first temperature sensing element 300 is connected to the battery cell 200 through the disassembly port 110 to detect the temperature of the side of the battery cell 200 near the disassembly port 110. For example, the first temperature sensing element 300 can form multiple connections with the battery cell 200 through the disassembly port 110, which makes the temperature detection of the side of the battery cell 200 near the disassembly port 110 more accurate and provides more samples to adapt to different usage environments.

[0051] Thus, the battery cell module 1 according to the embodiments of the present invention has advantages such as accurate temperature sampling, convenient sampling point arrangement, low production cost and good temperature conduction effect.

[0052] According to some specific embodiments of the present invention, such as Figure 2 , Figure 4 and Figure 12 As shown, the battery cell module 1 also includes a second temperature sensing element 400. The bottom surface 101 of the housing 100 is provided with at least one temperature sensing opening 120. The second temperature sensing element 400 is connected to the battery cell 200 through the temperature sensing opening 120 and is used to detect the temperature of the side of the battery cell 200 near the temperature sensing opening 120.

[0053] By providing a temperature sensing opening 120 on the bottom surface 101 of the housing 100, the second temperature sensing element 400 is connected to the battery cell 200 through the temperature sensing opening 120 to detect the temperature of the side of the battery cell 200 near the temperature sensing opening 120. For example, the second temperature sensing element 400 can form multiple connections with the battery cell 200 through the temperature sensing opening 120, making the temperature detection of the side of the battery cell 200 near the bottom surface 101 more accurate and providing more samples to adapt to different usage environments.

[0054] Furthermore, the first temperature sensing element 300 and the second temperature sensing element 400 can collect the temperature of opposite sides of the battery cell 200, wherein the bottom surface 101 of the battery cell 200 is close to the cooling plate 900, and the top surface of the battery cell 200 is far away from the cooling plate 900. Thus, the first temperature sensing element 300 and the second temperature sensing element 400 can collect the highest and lowest temperatures of the battery cell 200, thereby enabling a more accurate assessment of the temperature and status of the battery cell 200.

[0055] According to some specific embodiments of the present invention, such as Figure 2 As shown, the side of the battery cell 200 near the temperature sensing opening 120 has a sealing edge 210, which protrudes from the temperature sensing opening 120.

[0056] The battery cell 200 can be packaged using a three-sided sealing method, with the sealing edge tip 210 extending beyond the side wall of the housing 100 that has a temperature-sensing opening 120. Since the sealing edge tip 210 protrudes from the temperature-sensing opening 120, and friction between the sealing edge tip 210 and the housing 100 is avoided, the probability of wear on the sealing edge tip 210 is reduced, and the service life of the battery cell 200 is extended.

[0057] It should be noted that the second temperature sensing element 400 can be attached to both ends of each cell 200 to accurately measure the temperature of the cell 200.

[0058] According to some specific embodiments of the present invention, such as Figure 3 , Figure 8 , Figure 9 and Figure 11 As shown, the battery cells 200 are arranged in series along the length of the housing 100, and the temperature sensing openings 120 are spaced apart along the length of the housing 100. The multiple temperature sensing openings 120 include end temperature sensing openings 121 and middle temperature sensing openings 122. The outermost battery cell 200 is exposed from the end temperature sensing opening 121. That is, the outer end of the connected first-end battery cell is exposed from the end temperature sensing opening 121, or the outer end of the connected last-end battery cell is exposed from the end temperature sensing opening 121, or both the outer ends of the connected first-end battery cell and the outer ends of the connected last-end battery cell are exposed from the end temperature sensing opening 121.

[0059] The inner end of the outermost cell 200 and both ends of the remaining cells 200 are exposed through the central temperature-sensing opening 122. Specifically, the inner ends of the first-end cells connected in series, or the inner ends of the last-end cells connected in series, or both the inner ends of the first-end and last-end cells connected in series, are exposed through the central temperature-sensing opening 122. A second temperature-sensing element 400 is connected to the multiple cells 200 through multiple temperature-sensing openings 120 and is used to detect the temperature of the side of the multiple cells 200 closest to the temperature-sensing openings 120.

[0060] In this way, the battery module 1 contains more than one battery cell 200, which can improve the battery life and power supply voltage of the battery module 1. Furthermore, the second temperature sensing element 400 can simultaneously detect the temperature of multiple parts of multiple battery cells 200, thereby improving the temperature measurement efficiency of multiple battery cells 200 and reducing the number of second temperature sensing elements 400 to reduce production costs.

[0061] According to some specific embodiments of the present invention, such as Figure 2 , Figure 6 , Figure 10 and Figure 12 As shown, the battery cell module 1 also includes an end bus 500 and an intermediate bus 600.

[0062] The end bus 500 is connected to the outer end of the outermost cell 200, that is, the end bus 500 is connected to the outer end of the head cell, or the end bus 500 is connected to the outer end of the tail cell, or there are two end buses 500, one end bus 500 is connected to the outer end of the head cell, and the other end bus 500 is connected to the outer end of the tail cell. The middle bus 600 is connected to the adjacent ends of two adjacent cells 200. The middle bus 600 is provided with a clearance groove 610, which is used to place the second temperature sensing element 400.

[0063] For example, clearance slots 610 can be provided on both sides of the intermediate busbar 600. One clearance slot 610 is used to place the first temperature sensing element 300, and the other clearance slot 610 is used to place the second temperature sensing element 400.

[0064] In this way, by setting the end busbar 500, multiple battery cell modules 1 can be connected together, and thus multiple battery cell modules 1 can be connected in parallel or in series through the end busbar 500. By setting the intermediate busbar 600, multiple battery cells 200 of each battery cell module 1 can be connected in series, which increases the power supply voltage of the battery cell module 1. Furthermore, since the intermediate busbar 600 is constructed with a clearance groove 610, the first temperature sensing element 300 and the second temperature sensing element 400 can be placed in the clearance groove 610, thereby avoiding positional interference between the first temperature sensing element 300, the second temperature sensing element 400 and the intermediate busbar 600, preventing excessive compression between the first temperature sensing element 300, the second temperature sensing element 400 and the intermediate busbar 600, which is beneficial to extending the service life of the first temperature sensing element 300, the second temperature sensing element 400 and the intermediate busbar 600.

[0065] According to some specific embodiments of the present invention, such as Figure 2 and Figure 6 As shown, the adjacent ends of two adjacent cells 200 are exposed from the same intermediate temperature sensing opening 122, wherein the intermediate busbar 600 between two adjacent cells 200 and the adjacent ends of two adjacent cells 200 are both exposed from the same intermediate temperature sensing opening 122.

[0066] In this way, on the one hand, the housing 100 will not affect the electrical connection between the two adjacent cells 200 and the intermediate busbar 600, which can ensure the reliability of the electrical connection between the two adjacent cells 200. On the other hand, it can reduce the number of intermediate temperature sensing openings 122, simplify the processing steps of the housing 100, and facilitate the disassembly and assembly of the cell module 1, thereby improving the production efficiency of the cell module 1 and the convenience of later maintenance and testing.

[0067] In some specific embodiments of the present invention, such as Figure 1 , Figure 3 and Figure 7As shown, one of the opposite side walls of the housing 100 is open to form a disassembly port 110. In other words, the housing 100 is a U-shaped housing and the disassembly port 110 is a fully open opening.

[0068] In this way, the housing 100 is more easily deformed. When the battery cell 200 is disassembled or assembled from the disassembly port 110, the battery cell 200 can be slightly deformed to facilitate the disassembly or assembly of the battery cell 200. Furthermore, since one side wall of the housing 100 is completely open to form the disassembly port 110, the processing and manufacturing of the housing 100 is simpler.

[0069] For example, the inner wall of the disassembly port 110 may have a folded edge 130. After assembly between the housing 100 and the battery cell 200, the folded edge 130 can pre-position the battery cell 200 to prevent the battery cell 200 from separating from the housing 100, thus ensuring the structural stability of the battery cell module 1.

[0070] In some other embodiments of the present invention, the disassembly port 110 is a semi-open opening, which makes the structure of the housing 100 stronger and allows the sidewall of the disassembly port 110 to block the battery cell 200, preventing the battery cell module 1 from detaching from the housing 100 through the disassembly port 110.

[0071] Specifically, at least one of the opposite sides of the housing 100 with its top surface in contact with the top surface does not have a solid sidewall in its entirety or upper half. This allows for more diverse configurations of the housing 100, thereby enabling the battery cell module 1 to be used in a wider range of environments.

[0072] According to some specific embodiments of the present invention, such as Figure 7 and Figure 8 As shown, the housing 100 includes a bottom wall, a first side wall 102, and a second side wall 103.

[0073] A bottom surface 101 is formed on a bottom wall. A first side wall 102 and a second side wall 103 are respectively connected to both sides of the bottom wall in the width direction and extend towards the same side in the thickness direction of the bottom wall. The bottom wall, the first side wall 102, and the second side wall 103 together define a mounting cavity 104 for accommodating at least one battery cell 200. The first side wall 102 and the second side wall 103 define a disassembly port 110 on the side away from the bottom wall. A first temperature sensing element 300 is provided on the side of the disassembly port 110 facing away from the bottom wall, and a second temperature sensing element 400 is provided on the side of the bottom wall facing away from the disassembly port 110.

[0074] In this way, the structure of the housing 100 is simple, which makes it easy to assemble the battery cell 200 into the housing 100, and reduces the material of the housing 100, thereby reducing the production cost of the housing 100.

[0075] According to some specific embodiments of the present invention, such as Figures 3-5As shown, the battery cell module 1 also includes a first heat-conducting component 700, which is filled between the side wall of the housing 100 with the temperature-sensing opening 120 and the battery cell 200 and avoids the temperature-sensing opening 120.

[0076] The first thermally conductive component 700 can be thermally conductive adhesive or a thermally conductive pad. By setting the first thermally conductive component 700, the gap between the battery cell 200 and the housing 100 can be filled, increasing the thermally conductive area between the battery cell 200 and the housing 100, thereby increasing the heat exchange efficiency between the battery cell 200 and the housing 100 and improving the thermal conductivity.

[0077] According to some specific embodiments of the present invention, the battery cell module 1 further includes a first insulating member (not shown in the figure), which is disposed between the housing 100 and the battery cell 200 and avoids the disassembly port 110 and the temperature sensing opening 120.

[0078] This avoids electrical conduction between the housing 100 and the battery cell 200, making the battery cell module 1 safer. Furthermore, since the first insulating component avoids the disassembly port 110 and the temperature sensing opening 120, the first insulating component will not interfere with the arrangement of the first temperature sensing element 300 and the second temperature sensing element 400, thus ensuring the effectiveness of temperature measurement of the battery cell 200.

[0079] For example, the first insulating element may be a PET (Polyethylene glycol terephthalate) film, or the first insulating element may be an insulating coating, which is formed directly on the housing 100 by spraying or electrophoresis, or the first insulating element may be insulating tape, which is adhered to at least one of the battery cell 200 and the housing 100.

[0080] It should be noted that the first insulating element also needs to be placed between the sealing edge 210 and the housing 100, so as to more reliably prevent electrical conduction between the sealing edge 210 and the housing 100.

[0081] The battery pack 2 according to an embodiment of the present invention is described below with reference to the accompanying drawings, such as... Figures 13-16 As shown, the battery pack 2 includes a cell module 1 according to the above embodiment of the present invention.

[0082] The battery pack 2 according to the embodiments of the present invention, by utilizing the cell module 1 according to the above embodiments of the present invention, has the advantages of accurate temperature sampling, convenient sampling point arrangement, low production cost and good temperature conduction effect.

[0083] According to some specific embodiments of the present invention, such as Figure 13 and Figure 16As shown, the battery pack 2 also includes a tray 800, the cell module 1 is disposed in the tray 800, the bottom plate of the tray 800 is provided with a second insulating member 810, the second insulating member 810 is disposed between the tray 800 and the housing 100 and covers the disassembly and assembly port 110.

[0084] This prevents electrical continuity between the battery cell 200 and the tray 800, improving the insulation performance of the battery pack 2 and increasing its safety. Furthermore, the first temperature sensing element 300 can be positioned between the battery cell module 1 and the tray 800.

[0085] According to some specific embodiments of the present invention, such as Figures 13-15 As shown, the battery pack 2 also includes a cooling plate 900 and a third insulating member 910. The cooling plate 900 is disposed on the side wall of the housing 100 with a temperature sensing opening 120, that is, the cooling plate 900 covers the bottom surface 101 of the housing 100 and is used to cool the cell module 1. The third insulating member 910 is disposed between the cooling plate 900 and the housing 100 and covers the temperature sensing opening 120.

[0086] In this way, the cooling plate 900 can exchange heat with the battery cell 200 through the housing 100, thereby cooling the battery cell 200 to ensure the working performance of the battery cell module 1. Furthermore, the third insulating component 910 can connect to the sealing edge 210, further preventing leakage from the sealing edge 210 and thus preventing poor insulation of the battery pack 2, which is beneficial to improving the safety of the battery pack 2. Additionally, the second temperature sensing element 400 can be positioned between the battery cell module 1 and the cooling plate 900.

[0087] The third insulating element 910 can be connected only to the edge sealing corner 210 without sealing the temperature sensing opening 120.

[0088] Specifically, the third insulating element 910 is an insulating strip that covers the temperature-sensing opening 120 along the width direction of the tray 800.

[0089] According to some specific embodiments of the present invention, such as Figure 14 As shown, the battery pack 2 also includes a second heat-conducting element 920, which is filled between the cooling plate 900 and the bottom surface 101 of the housing 100.

[0090] The second heat-conducting component 920 can be a thermally conductive adhesive or a thermally conductive pad. By providing the second heat-conducting component 920, the gap between the cooling plate 900 and the housing 100 can be filled, increasing the heat-conducting area between the cooling plate 900 and the housing 100, thereby increasing the heat exchange efficiency between the cooling plate 900 and the housing 100, and further improving the heat exchange efficiency between the battery cell 200 and the cooling plate 900, resulting in better heat conduction.

[0091] For example, the third insulating member 910 corresponds to the position of the temperature sensing opening 120, and the second heat-conducting member 920 corresponds to the position of the remaining part of the bottom surface 101 (the side wall of the housing 100 where the temperature sensing opening 120 is provided) except for the temperature sensing opening 120. Furthermore, the outer periphery of the third insulating member 910 extends beyond the temperature sensing opening 120. The outer periphery of the third insulating member 910 and the second heat-conducting member 920 can be stacked, and the second heat-conducting member 920 is located on the side of the outer periphery of the third insulating member 910 that faces away from the cooling plate 900.

[0092] The following description, with reference to the accompanying drawings, describes a vehicle according to an embodiment of the present invention, in which a cell module 1 as described in the above embodiment of the present invention is used, or a battery pack 2 as described in the above embodiment of the present invention is used.

[0093] The vehicle according to the embodiments of the present invention, by utilizing the cell module 1 or the battery pack 2 according to the above embodiments of the present invention, has the advantages of accurate temperature sampling, convenient sampling point arrangement, low production cost and good temperature conduction effect.

[0094] The cell module 1, battery pack 2, and other components and operations of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0095] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0096] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery cell module, characterized in that, include: The housing has a disassembly port on its top surface; At least one battery cell, which is detachably mounted in the housing via the mounting / dismounting port; A first temperature sensing element is connected to the battery cell through the disassembly port and is used to detect the temperature of the side of the battery cell near the disassembly port. The bottom surface of the housing is provided with at least one temperature sensing opening, and the battery cell module further includes a second temperature sensing element. The second temperature sensing element is connected to the battery cell through the temperature sensing opening and is used to detect the temperature of the side of the battery cell near the temperature sensing opening. The temperature sensing openings are a plurality of spaced-apart openings along the length of the housing, and the plurality of temperature sensing openings include end temperature sensing openings and middle temperature sensing openings. The housing contains a plurality of battery cells connected in series along the length of the housing. The outer ends of the connected head and / or tail cells are exposed from the end temperature sensing openings. The inner ends of the connected head and / or tail cells and the two ends of the remaining battery cells are exposed from the middle temperature sensing openings. The second temperature sensing element is connected to the multiple battery cells through the multiple temperature sensing openings.

2. The battery cell module according to claim 1, characterized in that, The battery cell has a sealing edge with a pointed corner on the side near the temperature sensing opening, and the sealing edge with a pointed corner protrudes from the temperature sensing opening.

3. The cell module according to claim 1, characterized in that, The adjacent ends of two adjacent cells connected in series are exposed from the same intermediate temperature-sensing opening.

4. The battery cell module according to claim 1, characterized in that, Also includes: An end busbar, wherein the end busbar is connected to the outer end of the head cell and / or the tail cell; An intermediate busbar is connected to the adjacent ends of two adjacent battery cells. The intermediate busbar is provided with a clearance groove for placing the second temperature sensing element.

5. The cell module according to claim 1, characterized in that, The disassembly port is a fully open or semi-open opening, and at least one of the opposite sides of the housing that is in contact with the top surface does not have a solid sidewall in its entirety or upper half.

6. The cell module according to claim 1, characterized in that, Also includes: A first thermal conductive element is filled between the bottom surface of the housing and the battery cell, avoiding the temperature sensing opening.

7. The cell module according to claim 1, characterized in that, Also includes: A first insulating element is disposed between the housing and the battery cell and avoids the disassembly port and the temperature sensing opening.

8. A battery pack, characterized in that, include: tray: At least one battery cell module according to any one of claims 1-7, the battery cell module being placed in the tray.

9. The battery pack according to claim 8, characterized in that, The bottom plate of the tray is provided with a second insulating element, which is located between the tray and the housing and covers the disassembly port.

10. The battery pack according to claim 8, characterized in that, Also includes: A cooling plate covers the bottom surface of the housing and is used to cool the battery cell module. A third insulating element is disposed between the cooling plate and the housing and covers the temperature sensing opening.

11. The battery pack according to claim 10, characterized in that, The third insulating element is an insulating tape that covers the temperature-sensing opening along the width of the tray.

12. The battery pack according to claim 10, characterized in that, Also includes: The second heat-conducting element is filled between the cooling plate and the bottom surface of the housing.

13. A vehicle, characterized in that, The vehicle application uses the cell module as described in any one of claims 1-7 or the battery pack as described in any one of claims 8-12.

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