Copper bar fixing structure, battery pack and electric equipment

Abstract

The utility model provides a copper bar fixing structure, a battery pack and electric equipment, and relates to the technical field of copper bar fixing, the copper bar fixing structure of the utility model comprises a through hole arranged at a preset position of a copper bar and a fixing support arranged on a fixing base, the fixing support comprises a fixing column connected with the fixing base, and the fixing column is provided with a through hole. The fixing column is provided with a clamping portion, the clamping portion can be extruded to deform when the clamping portion penetrates through the through hole from one side of the copper bar, and when the clamping portion penetrates through the through hole, the fixing column is arranged in the through hole in a penetrating mode, and the clamping portion deforms to reset and is arranged on the other side of the copper bar in a blocking mode. According to the copper bar fixing structure, the through holes are formed in the copper bars, the clamping parts of the fixing supports are used for fixing, no extra binding belt is needed for fixing, and compared with a binding belt fixing mode, the copper bar fixing structure has the advantages of being convenient to install and high in installation efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper bar fixing technical field, especially copper bar fixing structure, simultaneously, the utility model discloses a battery pack with copper bar fixing structure and an electric equipment provided with the battery pack. BACKGROUND

[0002] In the electric equipment, the battery pack is the core component of energy storage, and the design and manufacturing quality directly affect the performance, safety and reliability of the whole system. Among them, the copper bar is the main conductive path inside the battery pack, which is used for efficient transmission of current. Not only ensure that the current can flow smoothly in the whole battery system, but also support effective communication and control between battery modules.

[0003] However, the most common copper bar fixing scheme at present is to use a tie strap with a pine tree head structure (such as the T50RFT6 tie strap of Heilmann) for fixing. This tie strap usually includes a pine tree head that can be clamped to the mounting surface and a strap for binding the copper bar. When using the tie strap with the pine tree head for fixing, since there is a certain gap between the copper bar side fixing surface of the tie strap and the mounting surface of the pine tree head, a corresponding space needs to be reserved for installing the tie strap.

[0004] In addition, such a tie strap relies on the tightening of the pine tree head to achieve the fixing effect, and the space required at the pine tree head becomes another constraint point for the installation of the tie strap. Especially in the case where the copper bar needs to be installed at the module, since the module support itself needs to fix the battery cell, there may not be enough redundant space to match the tie strap pine tree head for hole opening, and the fixing and installation of the copper bar is relatively inconvenient. If such a tie strap is used directly, in the case where the surrounding space is relatively limited, this gap may cause the gap between the copper bar and the surrounding components to be too small, which may cause interference, and the gap between the pine tree head and the battery cell will be very small, or even the pine tree head and the battery cell will directly interfere with each other, which may cause serious safety hazards. SUMMARY

[0005] Therefore, the utility model aims at providing a copper bar fixing structure to improve the convenience of copper bar fixing.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A copper bar fixing structure, comprising a through hole arranged at a predetermined position of the copper bar, and a fixing support arranged on a fixing base;

[0008] The fixing support comprises a fixing column connected with the fixing base, and a clamping part is arranged on the fixing column, when the clamping part passes through the through hole from one side of the copper bar, the clamping part can be deformed by extrusion, when the clamping part passes through the through hole, the fixing column is arranged in the through hole, the clamping part returns to the original shape, and is arranged on the other side of the copper bar.

[0009] Further, the length of the fixing column is close to the thickness of the copper bar.

[0010] Further, the clamping part comprises a plurality of protrusions connected with the fixing column, and the plurality of protrusions are arranged at a central interval of the axis of the fixing column and form an umbrella-shaped structure.

[0011] Further, a groove is arranged on the fixing support and passes through the clamping part and the fixing column, and the groove is used for providing a deformation space for the clamping part.

[0012] Further, a base is arranged at the end of the fixing column away from the clamping part, and the fixing column is connected with the fixing base through the base.

[0013] Further, the base, the fixing column and the clamping part are integrally formed.

[0014] Further, an insulating coating is arranged on the part of the copper bar corresponding to the part without the through hole; or the part of the copper bar corresponding to the part without the through hole is covered with an insulating member.

[0015] Further, the fixing base comprises at least one of a module end plate, a side plate, a module cover, a module support, a battery pack shell and a battery pack support.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The copper bar fixing structure utilizes the through hole on the copper bar and the clamping part of the fixing support for clamping and fixing, is convenient to fix, does not need additional straps in the fixing process, significantly reduces space occupation, can avoid direct contact with the battery cell, ensures that the battery cell is in a safe state, eliminates potential safety hazards, the clamping part of the fixing column restores to the original shape after passing through the through hole, is firmly arranged on the other side of the copper bar, ensures that the copper bar is closely connected with the fixing support, is convenient to operate and has excellent stability and reliability.

[0018] In addition, the length of the fixing column is close to the thickness of the copper bar, so that the clamping part can accurately restore to the original shape after the fixing column completely passes through the through hole on the copper bar and is closely arranged on the other side of the copper bar, the connection tightness between the copper bar and the fixing support is improved, the stability of the fixing is enhanced, the space utilization is optimized, and the risk of loosening is reduced.

[0019] Secondly, the protrusion of the umbrella-shaped structure can be smoothly extruded and deformed when the copper bar is inserted, and quickly reset after the copper bar completely passes through the through hole, thereby firmly clamping the copper bar, effectively preventing it from loosening or falling off, and ensuring that the copper bar can remain highly stable even under vibration or other external forces.

[0020] Furthermore, the recess is used to provide sufficient deformation space, allowing the clamping part to temporarily deform when it passes through the through hole on the copper bar during installation, which makes it easier for the clamping part to pass through the through hole, reducing installation difficulty and improving installation efficiency.

[0021] In addition, the design of the base increases the contact area between the fixed column and the fixed base, thereby enhancing the stability of the entire fixed structure, and the presence of the base provides more extensive support for the fixed column, making it more stable when bearing the weight of the copper bar and reducing the risk of deformation or damage due to stress concentration.

[0022] At the same time, the base, fixed column and clamping part are integrally formed, ensuring the connection strength between the base, fixed column and clamping part, and reducing production complexity and improving production efficiency. By setting an insulating coating or insulating cover on the part of the copper bar that is not provided with a through hole, direct contact between the copper bar and surrounding metal parts or other conductive objects can be effectively prevented, thereby avoiding short circuits and other electrical faults, and ensuring the safe operation of the electrical system inside the battery pack.

[0023] In addition, fixing the copper bar on the module bracket allows it to be more tightly integrated into the battery pack, reducing the need for additional installation space. Fixing the copper bar on the shell provides additional fixing points without affecting the internal structure of the module, enhancing the overall stability of the copper bar.

[0024] Another purpose of the present application is to provide a battery pack with the copper bar fixing structure as described above.

[0025] In addition, another purpose of the present application is to provide an electrical equipment with the battery pack as described above.

[0026] The battery pack and electrical equipment described in the present application have the copper bar fixing structure described above, which facilitates the installation of the copper bar and ensures that it does not come into contact with the battery cell, eliminating potential safety hazards and ensuring the safety of the battery cell, thereby improving the safety of the battery pack and electrical equipment, resulting in better product quality. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0028] Figure 1 This is a schematic diagram of the copper busbar fixing structure described in Embodiment 1 of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the fixed bracket described in Embodiment 1 of this utility model;

[0030] Figure 3 for Figure 2 A magnified view of a portion at point A;

[0031] Figure 4 This is a schematic diagram of the structure of the copper busbar with insulating components according to Embodiment 1 of this utility model;

[0032] Figure 5 This is a schematic diagram of the copper busbar structure described in Embodiment 1 of this utility model;

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

[0034] 1. Copper busbar; 101. Through hole; 102. Connecting hole;

[0035] 2. Fixed foundation; 201. Fixed column; 202. Snap-fit ​​part; 203. Groove; 204. Base;

[0036] 3. Insulating components. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0039] In the description of the utility model, it is necessary to explain that if the terms such as ''upper'', ''lower'', ''inner'', ''outer'' and the like indicating orientation or positional relationship appear, it is based on the orientation or positional relationship shown in the drawing, and it is only for the convenience of describing the utility model and simplifying the description, and therefore it cannot be understood as limiting the utility model. In addition, if the terms such as ''first'', ''second'' and the like appear, they are also only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, in the description of the utility model, unless otherwise explicitly limited, the terms ''mounting'', ''connection'', ''connection'' and ''connector'' should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. It can be mechanically connected, or it can be electrically connected. It can be directly connected, or it can be indirectly connected through an intermediate medium. It can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood in combination with the specific circumstances.

[0041] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0042] Embodiment one

[0043] In the electrical equipment, the battery pack is the core component of energy storage, and the design and manufacturing quality directly affects the performance, safety and reliability of the whole system. Among them, the copper bar 1 is the main conduction path inside the battery pack, which is used for efficient transmission of current. Not only to ensure that the current can flow smoothly in the whole battery system, but also to support effective communication and control between battery modules.

[0044] However, the most common copper bar 1 fixing scheme at present is to use a tie with a pine head structure for fixing. Such a tie usually includes a pine head that can be clamped to the mounting surface and a binding belt used to bind the copper bar 1. When fixed by using a tie with a pine head, since there is a certain distance between the copper bar 1 side fixing surface of the tie and the mounting surface of the pine head, a corresponding space needs to be reserved for installing the tie.

[0045] In addition, such a tie relies on the tightening of the pine head to achieve the fixing effect, and the space required at the pine head becomes another constraint point for the installation of the tie. Especially in the case where the copper bar 1 needs to be installed at the module, since the module support itself needs to fix the battery cell, there may not be enough redundant space to match the tie pine head for hole opening, and the fixing and installation of the copper bar is relatively inconvenient.

[0046] If such a cable tie is directly used, in the case of a relatively limited peripheral space, this spacing can cause the copper bar to have too small a gap with the peripheral components, with the risk of interference, and the spacing between the fir tree head and the battery cell can be very small, or even the fir tree head and the battery cell can directly interfere, which poses a serious safety hazard.

[0047] The embodiment relates to a copper bar fixing structure which, by optimizing its own structure, is conducive to the installation of the copper bar 1 in a small space and can avoid direct contact with the battery cell, thereby facilitating the improvement of the safety of the battery pack.

[0048] As a whole, as shown in Figures 1 to 4 The copper bar fixing structure of the embodiment includes a through hole 101 arranged at a predetermined position of the copper bar 1 and a fixing support arranged on the fixing base 2. The fixing support includes a fixing column 201 connected with the fixing base, and the fixing column 201 is provided with a clamping portion 202. When the clamping portion 202 passes through the through hole 101 from one side of the copper bar 1, the clamping portion 202 can be deformed by extrusion. When the clamping portion 202 passes through the through hole 101, the fixing column 201 is arranged in the through hole 101, the clamping portion 202 is reset and is arranged on the other side of the copper bar 1.

[0049] At this time, as in the above arrangement, the through hole 101 arranged on the copper bar 1 cooperates with the clamping column 201 and the clamping portion 202 of the fixing support, and the clamping portion 202 is pressed from one side of the copper bar 1 to pass through the through hole 101 and is arranged on the other side of the copper bar 1, so that the copper bar is fixed more conveniently and the assembly efficiency is improved. Moreover, no additional cable tie is needed in the fixing process, the space occupation is significantly reduced, and the structure can avoid direct contact with the battery cell, ensure the safety of the battery cell, eliminate potential safety hazards, and facilitate the improvement of the stability and reliability of the copper bar fixing.

[0050] In order to better understand the structure of the copper bar 1 in the embodiment, first of all, a brief description is made with reference to Figure 5 The copper bar 1 is manufactured by stamping forming process as a whole, and two connecting holes 102 are arranged at both ends of the copper bar 1. The two connecting holes 102 can be processed by common processes such as stamping, laser cutting or drilling in the prior art. In addition, the two connecting holes 102 are usually used to connect adjacent battery modules, or one end is connected with the positive and negative poles of the battery module, and the other end is connected with the electrical elements in the battery pack.

[0051] In specific implementation, the copper bar 1 is firmly screwed on the corresponding components by means of the bolts or screws arranged in the connecting holes 102, which not only ensures the reliability and stability of the electrical connection, but also simplifies the installation process and improves the assembly efficiency.

[0052] In addition, the through hole 101 provided at the preset position of the copper bar 1 can also be processed by the punching, laser cutting or drilling process mentioned above, and is used for cooperating with the fixing column 201 on the fixing support.

[0053] Specifically, in the embodiment, the fixing base 2 includes at least one of the module end plate, the side plate, the module cover, the module support, the battery pack shell and the battery pack support, that is, the fixing base 2 can be one or more of the module end plate, the side plate, the module cover, the module support, the battery pack shell and the battery pack support. The fixing support can be adaptively arranged on the module end plate, the side plate, the module cover, the module support, the battery pack shell or the battery pack support according to actual needs.

[0054] In the embodiment, the fixing base 2 is taken as an example of the module support, and the copper bar 1 is fixed on the module support, so that the copper bar 1 is more stably fixed inside the battery pack and the additional installation space requirement is reduced.

[0055] In the embodiment, based on the length of the copper bar 1, one fixing support or multiple fixing supports can be arranged on the fixing base 2, and in the embodiment, two fixing supports are arranged on the fixing base 2, that is, the module support, and the structures of the fixing supports are the same. Correspondingly, two through holes 101 matched with the fixing supports are arranged on the copper bar 1. At this time, when the copper bar 1 is installed, the two clamping portions 202 pass through the two through holes 101 at the same time, and the clamping of the two clamping portions 202 and the copper bar 1 not only increases the stability of the fixing of the copper bar 1, but also effectively prevents the rotation or loosening of the copper bar 1 after installation.

[0056] It is worth noting that the number of the fixing supports and the through holes 101 can be one, three or other multiple numbers in addition to two, and the positions of the multiple through holes 101 are on the copper bar 1 between the two connecting holes 102. The embodiment does not limit this. The clamping cooperation of the multiple fixing columns 201 and the clamping portions 202 and the multiple through holes 101 on the copper bar 1 can further improve the safety and reliability of the entire battery pack.

[0057] In the embodiment, as a preferred implementation form, as shown in Figure 1 The length of the fixing column 201 tends to be the same as the thickness of the copper bar 1. In this way, after the fixing column 201 completely passes through the through hole 101 on the copper bar 1, the clamping portion 202 can be well restored to the original shape and tightly placed on the other side of the copper bar 1, which helps to improve the connection tightness between the copper bar 1 and the fixing support, thereby enhancing the stability of the fixing, reducing the risk of loosening and optimizing the space utilization.

[0058] It should be noted that the length of the fixed column 201 tends to be the same as the thickness of the copper bar 1, that is, the length of the fixed column 201 and the thickness of the copper bar 1 should be as same as possible. Due to manufacturing errors and other reasons, there is a certain difference between the length of the fixed column 201 and the thickness of the copper bar 1. In order to ensure the installation effect of the copper bar 1, the difference should be no more than 3mm. In specific implementation, it can be 1mm, 2mm or 3mm. In this way, after the copper bar 1 is installed, the problem of poor stability or shaking of the copper bar 1 caused by large difference can be avoided.

[0059] In the embodiment, as one of the preferred implementation forms, the clamping part 202 includes a plurality of protrusions connected to the fixed column 201, and the plurality of protrusions are arranged at a center distance of the axis of the fixed column 201 and form an umbrella-shaped structure. The plurality of protrusions arranged at intervals can use the gap between adjacent protrusions as a deformation space, which is beneficial to the compression of the plurality of protrusions, so that when the protrusions are inserted into the through hole 101 from one side of the copper bar 1, they are compressed and deformed and smoothly pass through the through hole 101. After the copper bar 1 completely passes through the through hole 101, it quickly resets and clamps on the other side of the copper bar, thereby firmly clamping the copper bar 1 and effectively preventing it from loosening or falling off, ensuring that the copper bar 1 can maintain high stability even under vibration or other external forces. In addition, the installation process of the copper bar 1 does not require the aid of additional tools, and the operation is more convenient and fast, greatly improving the installation efficiency.

[0060] It can be understood that the protrusions can be in the form of a conical structure, a triangular structure or a trapezoidal structure, etc., as long as they facilitate the clamping part 202 to penetrate the through hole 101 on the copper bar 1 and prevent the copper bar 1 from falling off the fixed column 201.

[0061] In the embodiment, as another preferred implementation form, as shown in Figure 3 The fixed support is provided with a groove 203 penetrating the clamping part 202 and the fixed column 201, and the groove 203 is used to provide a deformation space for the clamping part 202. When the clamping part 202 penetrates the through hole 101 on the copper bar 1, the groove 203 allows the clamping part 202 to temporarily deform, which makes the clamping part 202 more easily penetrate the through hole 101, reduces the installation difficulty and improves the installation efficiency. Specifically, the projection of the groove 203 on the fixed base 2 can be in the form of a "one" character, a "Y" character, a "ten" character, a "*" character or a "rice" character, etc.

[0062] It should be noted that the above-mentioned middle clamping portion 202 includes a plurality of protrusions connected to the fixed column 201, and the plurality of protrusions are arranged at a central distance of the axis of the fixed column 201, and form an umbrella-shaped structure, that is, only the plurality of protrusions are extruded and deformed when passing through the through hole 101, and reset after passing through the through hole 101. The fixed support is provided with a groove 203 penetrating the clamping portion 202 and the fixed column 201, and the groove 203 is used to provide a deformation space for the clamping portion 202. This structure can make the clamping portion and the fixed column deform, that is, the clamping portion 202 is extruded and deformed when passing through the through hole 101, and resets after passing through the through hole 101. At the same time, the fixed column 201 can also be deformed, and the through hole 101 is kept in a clamping state. In this way, the stability of the copper bar 1 can be further enhanced, and the convenience of installation can be improved.

[0063] In this embodiment, as a preferred implementation form, as shown in Figure 2 and Figure 3 , the end of the fixed column 201 away from the clamping portion 202 is provided with a base 204, and the fixed column 201 is connected to the fixed base 2 through the base 204.

[0064] The advantage of such design is mainly that the fixed column 201 connected to the fixed base 2 through the base 204 can increase the contact area between the fixed column 201 and the fixed base 2, improve the reliability of the fixed column 201 on the fixed base 2, thereby enhancing the structural stability of the entire fixed support. Moreover, the existence of the base 204 provides stable support for the fixed column 201, so that the fixed column 201 is more stable when bearing the weight of the copper bar 1, and the risk of deformation or damage caused by stress concentration is reduced.

[0065] Specifically, the base 204 can be fixed on the fixed base 2 by bonding, welding or screwing, and the material of the base 204 is preferably one of nylon, polycarbonate or composite material.

[0066] In this embodiment, as a preferred implementation form, the base 204, the fixed column 201 and the clamping portion 202 are integrally formed. In this way, the connection strength between the base 204, the fixed column 201 and the clamping portion 202 can be ensured, and the production complexity can be reduced, and the production efficiency can be improved.

[0067] In this embodiment, as a preferred implementation form, as shown in Figure 1 and Figure 4 , the part of the copper bar 1 corresponding to the part not provided with the through hole 101 is provided with an insulating coating, or the part of the copper bar 1 corresponding to the part not provided with the through hole 101 is covered with an insulating piece 3.

[0068] By setting the insulating coating or the insulating cover on the part of the copper bar 1 without the through hole 101, the direct contact between the copper bar 1 and the surrounding metal parts or other conductive objects can be effectively prevented, so as to avoid short circuit and other electrical faults, and ensure the safe operation of the internal electrical system of the battery pack.

[0069] In order to ensure the insulation performance of the copper bar 1, when the insulating coating is set, the insulating material can be uniformly sprayed on the surface of the copper bar 1 by using a spraying device, or the copper bar 1 can be immersed in the insulating coating, and then taken out and dried, so as to ensure the uniformity and consistency of the insulating coating. This method is very suitable for mass production.

[0070] In addition, the heat shrink tube can also be sleeved on the copper bar 1 in advance, and then heated by using a hot air gun to make the heat shrink tube shrink and tightly fit on the surface of the copper bar 1. This processing method is efficient and also suitable for mass production.

[0071] The copper bar fixing structure of the embodiment cooperates with the fixing column 201 and the clamping part 202 on the fixing support through the through hole 101 arranged on the copper bar 1, and the clamping part 202 passes through the through hole 101 from one side of the copper bar 1 and is clamped on the other side of the copper bar 1 by pressing the copper bar 1. Therefore, the copper bar 1 is fixed more conveniently, the assembly efficiency is improved, no additional straps are needed during the fixing process, the space occupation is significantly reduced, the structure can avoid direct contact with the battery cell, ensure the safety of the battery cell, eliminate potential safety hazards, and improve the stability and reliability of the copper bar fixing.

[0072] Embodiment two

[0073] The embodiment relates to a battery pack provided with the copper bar fixing structure in embodiment one.

[0074] The battery pack of the embodiment is convenient for fixing and installing the copper bar 1 by adopting the copper bar fixing structure in embodiment one, the assembly efficiency is improved, the contact with the battery cell can be avoided, potential safety hazards are eliminated, the safety of the battery cell is ensured, the safety of the battery pack is improved, and the stability and reliability of the copper bar fixing are improved, so that the use reliability of the battery pack is improved.

[0075] In addition, the embodiment also relates to a power consumption equipment provided with the battery pack.

[0076] The power consumption equipment of the embodiment is convenient for fixing and installing the copper bar 1 by adopting the battery pack, the assembly efficiency is improved, the contact with the battery cell can be avoided, potential safety hazards are eliminated, the safety of the battery cell is ensured, the safety of the battery pack is improved, the stability and reliability of the copper bar fixing are improved, the use reliability of the battery pack and the power consumption equipment is improved, and good use effect is achieved.

[0077] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A copper bar fixing structure, characterized in that: comprising a through hole arranged at a preset position of a copper bar, and a fixing support arranged on a fixing base; the fixing support comprises a fixing column connected with the fixing base, and a clamping portion is arranged on the fixing column; when the clamping portion passes through the through hole from one side of the copper bar, the clamping portion can be deformed by extrusion, and when the clamping portion passes through the through hole, the fixing column is arranged in the through hole, the clamping portion resets and is arranged on the other side of the copper bar.

2. The copper bar fixing structure according to claim 1, characterized in that: the length of the fixing column tends to be the same as the thickness of the copper bar.

3. The copper bar fixing structure according to claim 1, characterized in that: the clamping portion comprises a plurality of protrusions connected with the fixing column, and the plurality of protrusions are arranged at a center distance of the axis of the fixing column and form an umbrella-shaped structure.

4. The copper bar fixing structure according to claim 1, characterized in that: a groove is arranged on the fixing support and passes through the clamping portion and the fixing column, and the groove is used to provide a deformation space for the clamping portion.

5. The copper bar fixing structure according to claim 1, characterized in that: an end of the fixing column away from the clamping portion is provided with a base, and the fixing column is connected with the fixing base through the base.

6. The copper bar fixing structure according to claim 5, characterized in that: the base, the fixing column and the clamping portion are integrally formed.

7. The copper bar fixing structure according to claim 1, characterized in that: a portion of the copper bar corresponding to a position where the through hole is not arranged is provided with an insulating coating; or the portion of the copper bar corresponding to the position where the through hole is not arranged is covered with an insulating member.

8. The copper bar fixing structure according to any one of claims 1 to 7, characterized in that: the fixing base comprises at least one of a module end plate, a side plate, a module cover, a module support, a battery pack shell, and a battery pack support.

9. A battery pack, characterized in that: the battery pack is provided with the copper bar fixing structure according to any one of claims 1 to 8.

10. An electric device, characterized in that: the electric device is provided with the battery pack according to claim 9. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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