Ctc battery pack and vehicle

Abstract

The application provides a CTC battery pack and a vehicle, and relates to the technical field of power batteries. The CTC battery pack comprises a bottom guard plate, an upper cover, a battery cell module and an electrical unit. A wiring hole is formed in the upper cover. The upper cover and the bottom guard plate are respectively used for being connected with a mounting portion on a vehicle body to form a first mounting cavity, and the first mounting cavity is communicated with the wiring hole. The battery cell module is arranged in the first mounting cavity. The electrical unit is arranged on the upper cover, and the electrical unit is electrically connected with the battery cell module through the wiring hole. By arranging the electrical unit on the upper cover outside the mounting cavity, the space of the first mounting cavity is not occupied, the volume of the first mounting cavity can be reduced under the premise of keeping the power of the battery cell module unchanged, and then the transverse volume of the CTC battery pack is reduced.

Description

Technical Field

[0001] This application relates to the field of power battery technology, and in particular to a CTC battery pack and vehicle. Background Technology

[0002] CTC stands for "Cell to Chassis" technology, which is a design that integrates the battery pack directly into the vehicle's chassis structure. The battery cell modules in the battery pack are directly connected to the vehicle chassis (frame) without relying on a traditional battery pack casing.

[0003] In related technologies, the inner cavity of a CTC battery pack is divided into a cell cavity and an electrical cavity by a crossbeam. The cell cavity is used to install cell modules, and the electrical cavity is used to install electrical units (such as BDU, BMS, etc.). The electrical units are used to monitor the voltage, temperature, charging and discharging status and other information of the cell modules in real time to ensure that the cell modules operate within a safe range.

[0004] However, the aforementioned battery pack structure will increase the lateral volume of the CTC battery pack, resulting in the CTC battery pack requiring a large space when installed in a vehicle. Utility Model Content

[0005] This application provides a CTC battery pack and vehicle to solve the problem that the arrangement of electrical units leads to an additional increase in the lateral volume of the CTC battery pack.

[0006] In a first aspect, the CTC battery pack provided in the embodiments of this application includes:

[0007] Bottom guard plate;

[0008] The top cover has a wiring hole. The top cover and the bottom guard plate are respectively used to connect with the mounting part on the vehicle body to form a first mounting cavity. The first mounting cavity is connected to the wiring hole.

[0009] The battery cell module is disposed within the first mounting cavity;

[0010] The electrical unit is located on the top cover and is electrically connected to the battery cell module through wiring holes.

[0011] In one possible implementation, the CTC battery pack provided in this application embodiment further includes a housing, which is disposed on the top cover and covers the electrical unit.

[0012] In one possible implementation, the CTC battery pack provided in this application embodiment further includes a mounting base, which is disposed on the upper cover, and the outer shell is connected to the mounting base to form a second mounting cavity, and the electrical unit is disposed in the second mounting cavity;

[0013] The mounting base has a through hole that connects to the wiring hole.

[0014] In one possible implementation, the CTC battery pack provided in this application embodiment further includes at least one connector;

[0015] The housing has at least one first connection hole, and the mounting base has at least one second connection hole. The connector is configured to connect the housing and the mounting base via the first connection hole and the second connection hole.

[0016] In one possible implementation, the CTC battery pack provided in this application embodiment has a top cover that is also used to connect to a connecting part on the vehicle body. The two ends of the connecting part are respectively connected to a mounting part, and the connecting part is used to mount the seat of the vehicle body.

[0017] The height of the outer shell is lower than the height of the connection part on the adjacent vehicle body.

[0018] In one possible implementation, the CTC battery pack provided in this application embodiment has wiring holes located in the side area of ​​the top cover.

[0019] In one possible implementation, the CTC battery pack provided in this application embodiment has a mounting gap between the cell module and at least one side of the mounting portion, and the wiring harness of the electrical unit is arranged within the mounting gap.

[0020] In one possible implementation, the CTC battery pack provided in this application embodiment has a liquid cooling plate as its top cover.

[0021] In one possible implementation, the CTC battery pack provided in this application embodiment has a liquid cooling plate with a liquid cooling area and a mounting area. The liquid cooling area has a liquid cooling channel, the cell module is in contact with the liquid cooling area, and the wiring hole is located in the mounting area.

[0022] Secondly, the vehicle provided in this application embodiment includes a vehicle body and any of the aforementioned CTC battery packs, with the CTC battery pack disposed on the vehicle body.

[0023] This utility model provides a CTC battery pack and a vehicle. The CTC battery pack includes a bottom cover, a top cover, a cell module, and an electrical unit. A wiring hole is provided on the top cover. The top cover and the bottom cover are respectively used to connect to a mounting part on the vehicle body to form a first mounting cavity, which communicates with the wiring hole. The cell module is disposed within the first mounting cavity. The electrical unit is disposed on the top cover and is electrically connected to the cell module via the wiring hole. By placing the electrical unit on the top cover outside the mounting cavity, it does not occupy the space of the first mounting cavity. While maintaining the same power of the cell module, the volume of the first mounting cavity can be reduced, thereby reducing the lateral volume of the CTC battery pack. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] Figure 1 This is a schematic diagram of the vehicle structure provided in an embodiment of this application;

[0026] Figure 2 for Figure 1 A schematic diagram of the CTC battery pack in the diagram;

[0027] Figure 3 for Figure 2 Exploded view of the CTC battery pack in the image;

[0028] Figure 4 for Figure 2 Exploded view of the housing and mounting base;

[0029] Figure 5 for Figure 2 A schematic diagram of the structure of the battery cell module and mounting section;

[0030] Figure 6 for Figure 2 A schematic diagram of the battery cell module and the top cover in the middle;

[0031] Figure 7 for Figure 2 A bottom view of the top cover;

[0032] Figure 8 for Figure 2 AA cross-sectional view of the CTC battery pack in the image.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Bottom guard plate; 101. Installation gap; 110. Support strip; 120. Buffer pad;

[0035] 200. Top cover; 201. Wiring hole; 210. Cold plate body; 211. Liquid cooling area; 212. Mounting area; 220. Connector; 230. Liquid outlet pipe; 240. Liquid inlet pipe;

[0036] 300. Vehicle body; 310. Mounting part; 311. Cable tray; 312. Sill beam; 313. First crossbeam; 314. Second crossbeam; 320. Connecting part; 321. First connecting part; 322. Second connecting part;

[0037] 400. Battery cell module;

[0038] 500. Electrical unit; 510. Wiring harness;

[0039] 600. Outer casing; 610. First connecting hole;

[0040] 700, Mounting base; 710, Through hole; 720, Second connecting hole;

[0041] 800. Connectors.

[0042] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0043] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0044] The terms “first,” “second,” “third,” and “fourth,” etc. (if present), in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0045] As mentioned in the background section, in related technologies, the inner cavity of a CTC battery pack is divided into a cell cavity and an electrical cavity by a crossbeam. The cell cavity is used to install cell modules, and the electrical cavity is used to install electrical units (such as BDU, BMS, etc.). The electrical units are used to monitor the voltage, temperature, charging and discharging status, and other information of the cell modules in real time to ensure that the cell modules operate within a safe range.

[0046] However, the above structural design will increase the lateral volume of the CTC battery pack, resulting in the CTC battery pack requiring a large space when installed in a vehicle.

[0047] To address the aforementioned problems in the existing technology, this utility model provides a CTC battery pack and a vehicle. The CTC battery pack includes a bottom cover, a top cover, a cell module, and an electrical unit. The top cover has wiring holes. The top cover and bottom cover are respectively used to connect to mounting parts on the vehicle body to form a first mounting cavity, which communicates with the wiring holes. The cell module is disposed within the first mounting cavity. The electrical unit is disposed on the top cover and is electrically connected to the cell module via the wiring holes. By placing the electrical unit on the top cover outside the mounting cavity, it does not occupy the space of the first mounting cavity. While maintaining the same power of the cell module, the volume of the first mounting cavity can be reduced, thereby reducing the lateral volume of the CTC battery pack.

[0048] The following describes exemplary application scenarios of this utility model.

[0049] The CTC battery pack provided by this utility model can be applied to new energy vehicles, such as pure electric vehicles and plug-in hybrid vehicles. Specifically, the CTC battery pack provided by this utility model, by setting the electrical unit on the upper cover outside the mounting cavity, does not occupy the space of the mounting cavity. Under the premise of maintaining the same power of the cell module, the volume of the mounting cavity can be reduced, thereby improving the space utilization rate of the CTC battery pack on the vehicle body.

[0050] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0051] Reference Figure 1 and Figure 2 As shown, the CTC battery pack provided in this application embodiment includes a bottom protection plate 100, a top cover 200, a vehicle body 300, and an electrical unit 500.

[0052] The upper cover 200 has a wiring hole 201. The upper cover 200 and the bottom guard plate 100 are respectively connected to the mounting part 310 on the vehicle body 300 to form a first mounting cavity, which communicates with the wiring hole 201. The battery cell module 400 is disposed in the first mounting cavity. The electrical unit 500 is disposed on the upper cover 200 and is electrically connected to the battery cell module 400 through the wiring hole 201.

[0053] Reference Figure 1 and Figure 2As shown, the vehicle body 300 has a mounting portion 310, and the bottom guard plate 100 and the top cover 200 are respectively connected to the mounting portion 310 to form a first mounting cavity for mounting the battery cell module 400. The mounting portion 310 is equivalent to the side frame of the battery pack, and the top cover 200 is equivalent to the floor of the vehicle body 300. This allows for a more compact connection between the battery pack and the vehicle body 300, improving the integration of the battery pack and the vehicle body 300, thereby increasing the overall space utilization.

[0054] For example, refer to Figure 1 and Figure 5 As shown, the mounting section 310 can be formed by two opposing sill beams 312, a first crossbeam 313, and a second crossbeam 314 on the vehicle body 300.

[0055] Furthermore, refer to Figure 2 and Figure 3 As shown, the electrical unit 500 is mounted on the upper cover 200. The wiring harness 510 of the electrical unit 500 can enter the mounting cavity through the wiring hole 201 on the upper cover 200 and be electrically connected to the cell module 400. In this way, the electrical unit 500 is located on the outside of the mounting cavity, without occupying the space of the first mounting cavity. While maintaining the same power of the cell module 400, the volume of the first mounting cavity can be reduced, thereby reducing the lateral volume of the CTC battery pack and improving the space utilization rate of the CTC battery pack on the vehicle body 300.

[0056] To facilitate understanding of the directions, an XYZ spatial coordinate system is established in the accompanying drawings of the specification. The direction of the X-axis is the first direction referred to in the embodiments of this application, and the direction of the Y-axis is the second direction referred to in the embodiments of this application.

[0057] Reference Figure 2 As shown, the first direction is the lateral extension direction of the CTC battery pack. By placing the electrical unit 500 on the outside of the mounting cavity, the lateral volume occupied by the first mounting cavity of the CTC battery pack can be reduced. The cell arrangement direction of the cell module 400 is the first direction, and the mounting direction of the electrical unit 500 is the second direction. This makes the overall structure more compact and improves the space utilization of the CTC battery pack on the vehicle body 300.

[0058] Preferably, the first direction is perpendicular to the second direction.

[0059] Understandably, the electrical unit 500 is used to monitor the voltage, temperature, charging and discharging status, and other information of the cell module 400 in real time to ensure that the cell module 400 operates within a safe range. The electrical unit 500 may include a BDU (Battery Disconnect Unit) and a BMS (Battery Management System).

[0060] Therefore, the CTC battery pack provided in this application embodiment can reduce the volume of the first mounting cavity and thus reduce the lateral volume of the CTC battery pack by placing the electrical unit 500 on the upper cover 200 on the outside of the mounting cavity without occupying the space of the first mounting cavity, while keeping the power of the cell module 400 unchanged.

[0061] Reference Figures 2 to 5 As shown, in some embodiments, the CTC battery pack provided in this application also includes a housing 600, which is disposed on the upper cover 200 and covers the electrical unit 500.

[0062] In the above embodiment, by providing a housing 600 on the upper cover 200, the housing 600 covers the electrical unit 500 to protect the electrical unit 500.

[0063] Specifically, refer to Figure 3 As shown, the shape of the housing 600 can be adapted to the shape of the electrical unit 500 to avoid taking up too much space on the top cover 200, so as to make the overall structure of the CTC battery pack more compact.

[0064] Reference Figure 3 and Figure 4 As shown, in some embodiments, the CTC battery pack provided in this application also includes a mounting base 700, which is disposed on the upper cover 200. The outer shell 600 is connected to the mounting base 700 to form a second mounting cavity, and the electrical unit 500 is disposed in the second mounting cavity.

[0065] The mounting base 700 has a through hole 710, which is connected to the wiring hole 201.

[0066] In the above embodiment, a mounting base 700 is provided on the upper cover 200, which can be used to install the electrical unit 500. The first mounting cavity and the second mounting cavity are connected through a through hole 710 and a wiring hole 201. The wiring harness 510 of the electrical unit 500 can enter the first mounting cavity through the through hole 710 and the wiring hole 201 in sequence, and be electrically connected to the battery cell module 400.

[0067] Reference Figure 3As shown, in some embodiments, the CTC battery pack provided in this application also includes at least one connector 800.

[0068] The housing 600 is provided with at least one first connection hole 610, and the mounting base 700 is provided with at least one second connection hole 720. The connector 800 is configured to connect the housing 600 and the mounting base 700 via the first connection hole 610 and the second connection hole 720.

[0069] In the above embodiments, the connector 800 can pass through the first connection hole 610 on the housing 600 and connect to the second connection hole 720 on the mounting base 700 to achieve a detachable connection between the housing 600 and the mounting base 700.

[0070] In this way, when the electrical unit 500 malfunctions, the outer casing 600 can be removed from the mounting base 700, and the electrical unit 500 can be repaired directly, avoiding cumbersome disassembly steps and thus improving the efficiency of operation and maintenance.

[0071] The device includes at least one connector 800, and the number of connectors 800 can be one. Multiple connectors 800 can also be arranged at intervals around the edges of the housing 600 and the mounting base 700 to improve installation stability. This application embodiment does not impose excessive limitations in this regard. It is understood that the number of first connecting holes 610 and the number of second connecting holes 720 should correspond to the number of connectors 800.

[0072] For example, the connector 800 can be a bolt, and the first connecting hole 610 and the second connecting hole 720 can both be threaded holes adapted to it.

[0073] Reference Figure 2 and Figure 3 As shown, in some embodiments, the top cover 200 is also used to connect to the connecting portion 320 on the vehicle body 300. Both ends of the connecting portion 320 are connected to the mounting portion 310, and the connecting portion 320 is used to mount the vehicle seat. The height of the outer shell 200 is lower than the height of the connecting portion 320 on the adjacent vehicle body 300.

[0074] In the above embodiment, the connecting part 320 can be used to install the vehicle seat, and the upper cover 200 serves as the floor of the vehicle passenger compartment. By providing the connecting part 320 on the upper cover 200, the connection between the upper cover 200 and the vehicle body 300 is made tighter, and the structural strength of the upper cover 200 is improved, thereby preventing the occupants from bending and deforming the upper cover 200, which could damage the battery cell module 400.

[0075] Furthermore, the connecting portion 320 may include a first connecting portion 321 and at least one second connecting portion 322, with the first connecting portion 321 and the second connecting portion 322 spaced apart.

[0076] The first connecting portion 321 and the second connecting portion 322, which are spaced apart, can be used to install a row of seats. The first connecting portion 321 is located close to the mounting base 700, and the height of the first connecting portion 321 is higher than the height of the outer shell 600. This creates a gap between the seat and the outer shell 600, preventing the outer shell 600 from being deformed by the pressure of the seat, which could damage the electrical unit 500.

[0077] The height of the second connecting part 322 may be lower than the height of the first connecting part 321, or it may be equal to or higher than the height of the first connecting part 321. This application embodiment does not impose too many restrictions on this.

[0078] Furthermore, the first connecting part 321 and the second connecting part 322 extend along the second direction, and the installation direction of the electrical unit 500 is also the second direction, so as to avoid mutual interference when the CTC battery pack is installed with the vehicle body, causing installation inconvenience.

[0079] Reference Figure 2 and Figure 3 As shown, in some embodiments, the wiring hole 201 is located in the side area of ​​the top cover 200.

[0080] In the above embodiment, in this structural design, the electrical unit 500 and the housing 600 are respectively arranged at the edge of the cover 200 to avoid bulges in the middle area of ​​the floor of the vehicle body 300, thereby preventing passengers from getting their feet hurt and improving the riding comfort of the passengers.

[0081] Meanwhile, the electrical unit 500 is located at the edge of the upper cover 200, which also facilitates the wiring layout of the electrical unit 500's wiring harness 510 within the first mounting cavity.

[0082] Reference Figure 5 As shown, in some embodiments, the battery cell module 400 and the mounting portion 310 have at least one mounting gap 101, and the wiring harness 510 of the electrical unit 500 is arranged within the mounting gap 101.

[0083] In the above embodiment, the battery cell module 400 may have a mounting gap 101 with one side of the mounting portion 310, and the electrical unit 500 is correspondingly disposed above the mounting gap 101, so that the wiring harness 510 of the electrical unit 500 can be arranged from top to bottom within the mounting gap 101. Furthermore, the mounting gap 101 can also be used for the installation of connectors of the electrical unit 500.

[0084] It is understood that the wiring harness 510 of the electrical unit 500 may include power lines, connectors, etc., wherein the connectors may be copper busbars, aluminum busbars, etc.

[0085] Specifically, refer to Figure 2 , Figure 5 and Figure 8 As shown, the battery cell module 400 and one side of the mounting part 310 have a mounting gap 101. The mounting part 310 is provided with a wiring groove 311 extending along the extension direction of the mounting part 310. The wiring groove 311 is connected to the first mounting cavity. The wiring harness 510 of the electrical unit 500 can be routed through the wiring groove 311, so that the overall structure is more compact and the wiring harness 510 is convenient to route.

[0086] Of course, in other embodiments, the battery module 400 and the mounting part 310 have multiple sides with mounting gaps 101, and each mounting gap 101 is connected in sequence, so that the wiring harness 510 of the electrical unit 500 can be arranged in the mounting gaps 101.

[0087] In some embodiments, seals may be provided between the bottom cover 100 and the mounting portion 310, between the top cover 200 and the mounting portion 310, and between the outer casing 600 and the top cover 200 to prevent dust, liquids, etc. from entering the mounting cavity and damaging the battery cell module 400 and the electrical unit 500.

[0088] For example, the sealing element can be a silicone gasket, a rubber gasket, a sealant, etc., and the embodiments of this application do not impose too many restrictions on it.

[0089] Reference Figure 3 , Figure 6 and Figure 7 As shown, in some embodiments, the top cover 200 is a liquid cooling plate.

[0090] In the above embodiment, the liquid cooling plate serves as the top cover 200 of the CTC battery pack, which can simultaneously perform the functions of liquid cooling heat dissipation for the cell module 400 and the floor function of the vehicle body 300. Compared with the prior art, this design can reduce the weight of the CTC battery pack and reduce the Z-axis volume of the CTC battery pack, thereby increasing the Z-axis space of the vehicle's passenger compartment and improving passenger comfort.

[0091] The battery cell module 400 and the liquid cooling plate can be connected with glue to improve the stability of the battery cell module 400 installation.

[0092] Reference Figure 7 As shown, in some embodiments, the liquid cooling plate includes a liquid cooling region 211 and a mounting region 212. The liquid cooling region 211 has a liquid cooling channel. The battery cell module 400 is correspondingly abutted against the liquid cooling region 211, and the wiring hole 201 is located in the mounting region 212.

[0093] Among them, reference Figure 1 As shown, the liquid cooling plate includes a cold plate body 210 and a connector 220 connected to each other. The liquid outlet pipe 230 and the liquid inlet pipe 240 of the cold plate body 210 are both disposed on the connector 220. The connector 220 is inserted into the mounting part 310. The liquid outlet pipe 230 and the liquid inlet pipe 240 are respectively connected to the liquid cooling channel.

[0094] In the above embodiment, both the liquid outlet pipe 230 and the liquid inlet pipe 240 can be connected to an external liquid cooling device. The liquid cooling device delivers refrigerant to the cold plate body 210 through the liquid inlet pipe 240. The refrigerant flows in the liquid cooling channel of the liquid cooling area 211 and carries away the heat generated by the battery cell module 400, thereby dissipating heat and cooling the battery cell module 400. Then the refrigerant flows back to the liquid cooling device through the liquid outlet pipe 230.

[0095] The wiring hole 201 is located in the mounting area 212 and is separated from the liquid cooling channel of the liquid cooling area 211 to avoid mutual interference during the installation of the electrical units 500. Part of the mounting base 700 can be located within the liquid cooling area 211 so that the liquid cooling channel within the liquid cooling area 211 can dissipate heat and cool the electrical units 500.

[0096] For example, the mounting part 310 may be provided with a clearance hole, through which the liquid outlet pipe 230 and the liquid inlet pipe 240 may be exposed in the first mounting cavity to facilitate communication with an external liquid cooling device.

[0097] Reference Figure 6 As shown, in some embodiments, at least one support strip 110 is provided on the bottom protective plate 100, and the support strip 110 is bonded to the battery cell module 400.

[0098] In the above embodiment, by providing the support strip 110, the structural strength of the bottom protective plate 100 can be increased and the deformation of the bottom protective plate 100 can be reduced. At the same time, the support strip 110 can assist in supporting each battery cell in the battery cell module 400, thereby improving the stability of the overall structure.

[0099] Among them, reference Figure 6 As shown, multiple support bars 110 can be spaced out on the bottom guard plate 100.

[0100] Reference Figure 6 As shown, in some embodiments, at least one buffer pad 120 may be provided on the bottom protective plate 100, and the buffer pad 120 abuts against the battery cell module 400.

[0101] In the above embodiment, by setting the buffer pad 120, the deformation of the bottom protective plate 100 can be prevented from damaging the battery cell module 400.

[0102] For example, the seal can be made of elastic materials such as silicone pads, rubber pads, or foam, and this application does not impose any restrictions on this.

[0103] The vehicle provided in this application embodiment includes a vehicle body 300 and the CTC battery pack as described above, with the CTC battery pack disposed on the vehicle body 300.

[0104] In the above structural configuration, since the vehicle adopts the CTC battery pack in the above embodiment, it also has the advantages and benefits brought by the CTC battery pack, which will not be elaborated further here.

[0105] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0106] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A CTC battery pack, characterized in that, include: Bottom guard plate (100); The upper cover (200) has a wiring hole (201) on it. The upper cover (200) and the bottom guard plate (100) are respectively used to connect with the mounting part (310) on the vehicle body (300) to form a first mounting cavity. The first mounting cavity is connected to the wiring hole (201). A battery cell module (400) is disposed within the first mounting cavity; An electrical unit (500) is disposed on the upper cover (200) and is electrically connected to the battery cell module (400) through the wiring hole (201).

2. The CTC battery pack according to claim 1, characterized in that, It also includes a housing (600) disposed on the upper cover (200) and covering the electrical unit (500).

3. The CTC battery pack according to claim 2, characterized in that, It also includes a mounting base (700) disposed on the upper cover (200), the outer shell (600) being connected to the mounting base (700) to form a second mounting cavity, and the electrical unit (500) being disposed in the second mounting cavity; The mounting base (700) has a through hole (710) which is connected to the wiring hole (201).

4. The CTC battery pack according to claim 3, characterized in that, It also includes at least one connector (800); The housing (600) is provided with at least one first connection hole (610), the mounting base (700) is provided with at least one second connection hole (720), and the connector (800) is configured to connect the housing (600) and the mounting base (700) via the first connection hole (610) and the second connection hole (720).

5. The CTC battery pack according to claim 2, characterized in that, The top cover (200) is also used to connect with the connecting part (320) on the vehicle body (300), the two ends of the connecting part (320) are respectively connected to the mounting part (310), and the connecting part (320) is used to install the seat of the vehicle body (300); The height of the outer shell (600) is lower than the height of the connecting portion (320) on the adjacent vehicle body (300).

6. The CTC battery pack according to any one of claims 1 to 5, characterized in that, The wiring hole (201) is located in the side area of ​​the top cover (200).

7. The CTC battery pack according to claim 6, characterized in that, The battery cell module (400) has an installation gap (101) with at least one side of the mounting part (310), and the wiring harness (510) of the electrical unit (500) is arranged in the installation gap (101).

8. The CTC battery pack according to any one of claims 1 to 5, characterized in that, The upper cover (200) is a liquid cooling plate.

9. The CTC battery pack according to claim 8, characterized in that, The liquid cooling plate has a liquid cooling area (211) and an installation area (212). The liquid cooling area (211) has a liquid cooling channel. The battery cell module (400) is in contact with the liquid cooling area (211). The wiring hole (201) is located in the installation area (212).

10. A vehicle, characterized in that, It includes a vehicle body and a CTC battery pack as described in any one of claims 1 to 9, wherein the CTC battery pack is disposed on the vehicle body.

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