Lithium battery protection plate with wire harness structure

Abstract

The utility model relates to lithium battery protection board technical field, especially a lithium battery protection board with wiring harness structure, including bottom plate, the even group of lithium battery module of series connection is inserted and is installed to the upper end surface of bottom plate, and the upper end surface of lithium battery module is installed with the protection cover of buckling, the both sides of protection cover are provided with the side plate department connected with bottom plate, the one side of protection cover is provided with the protection board connected with lithium battery module, the protection board is fixedly connected with protection cover. This application is through setting up wiring harness box, has realized the centralized management of external cable, has avoided the winding and confusion of wiring harness, makes wiring harness layout more neat and orderly. This not only has facilitated the installation and maintenance of protection board, has also improved the reliability and stability of system, has reduced the failure probability because of the wiring harness problem.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery protection board technology, and in particular to a lithium battery protection board with a wire harness structure. Background Technology

[0002] With the continuous development of technology, lithium batteries, with their advantages of high energy density and long service life, have been widely used in many fields, such as electric vehicles, portable electronic devices, and energy storage systems. As a key component for the safe and stable operation of lithium batteries, the performance and reliability of the lithium battery protection board system directly affect the working effect of the entire lithium battery application system.

[0003] In traditional lithium battery protection board systems, the management of external cables is a significant problem. Due to a lack of effective centralized management, numerous external cables are often haphazardly placed, easily leading to tangled and chaotic wiring. This not only greatly inconveniences the installation of the protection board, requiring installers to spend considerable time and effort sorting and connecting the messy cables, significantly reducing installation efficiency, but also makes locating and repairing specific cables extremely difficult during subsequent maintenance, increasing maintenance costs and time. More seriously, the chaotic wiring layout can easily cause short circuits and other faults, greatly reducing system reliability and stability, increasing the probability of faults caused by wiring problems, and posing potential safety hazards to the entire lithium battery application system. Utility Model Content

[0004] This invention solves the problems in related technologies and proposes a lithium battery protection board with a wire harness structure.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A lithium battery protection board with a wire harness structure includes a base plate. Several sets of series-connected lithium battery modules are evenly inserted and installed on the upper surface of the base plate. A protective cover is fastened and installed on the upper surface of the lithium battery modules. Side plates connected to the base plate are provided on both sides of the protective cover. A protection plate connected to the lithium battery modules is provided on one side of the protective cover. The protection plate is fixedly connected to the protective cover. A wire harness box is fixedly installed on the inner side of the protection plate. An external cable connected to the protection plate is placed in the wire harness box.

[0007] As a preferred embodiment, a positive electrode plate and a negative electrode plate connected to the lithium battery module are installed on one side of the base plate. Both the positive electrode plate and the negative electrode plate are fixedly connected to the base plate. A protective shell for protecting the positive electrode plate and the negative electrode plate is also integrally formed on the side of the base plate.

[0008] As a preferred embodiment, the upper surface of the base plate is uniformly provided with several sets of limiting post shells that separate the lithium battery modules, and the limiting post shells are integrally formed with the base plate.

[0009] As a preferred embodiment, the protective cover includes a snap cover and a plug-in post that cooperates with the limiting post housing. The plug-in post is evenly installed on the lower end face of the snap cover, and the plug-in post is fixedly connected to the snap cover.

[0010] As a preferred embodiment, a positioning plate is vertically installed on the side of the cover. The positioning plate is integrally formed with the cover, and a positioning tube shell for installing the protective plate is fixedly installed on the outer surface of the positioning plate.

[0011] As a preferred embodiment, the protection plate includes an outer frame and a circuit board. The circuit board is fixedly installed on the outer side of the outer frame, and the inner side of the outer frame is provided with metal elastic clips that are connected to the positive and negative electrode plates. The metal elastic clips are electrically connected to the circuit board.

[0012] As a preferred embodiment, the outer frame includes a horizontal plate, an X-shaped frame, and an internal threaded tube corresponding to the positioning tube shell. The X-shaped frame is fixedly installed on the upper end face of the horizontal plate, and the internal threaded tube is fixedly installed on the head of the X-shaped frame.

[0013] As a preferred embodiment, the wire harness box includes a main box body, a partition plate, and a flip-top cover. The partition plate is fixedly installed in the middle of the main box body, and the flip-top cover is rotatably installed at both ends of the upper surface of the main box body, with one end of the flip-top cover rotatably connected to the main box body.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: By setting up a wire harness box, this application achieves centralized management of external cables, avoiding tangling and chaos in the wire harness, and making the wire harness layout more neat and orderly. This not only facilitates the installation and maintenance of the protection board, but also improves the reliability and stability of the system and reduces the probability of failures caused by wire harness problems. The design of the limiting post shell on the base plate, the plug-in post of the protective cover, and the installation structure of the protection board ensures a stable connection between the lithium battery module, the protective cover, and the protection board. It can effectively prevent problems such as loosening and displacement of the lithium battery module during use, ensuring the performance and safety of the battery. The plug-in method facilitates quick positioning and use during installation. At the same time, the protection shell protects the positive and negative terminal plates, and the protective cover protects the lithium battery module, effectively resisting the effects of external factors such as impact, compression, dust, and moisture, extending the service life of the battery assembly, and improving the reliability and stability of the entire lithium battery protection board system. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure in an embodiment of this utility model;

[0016] Figure 2 This is a perspective view of the base plate and lithium battery module in cooperation in an embodiment of this utility model;

[0017] Figure 3 This is a perspective view of the protective cover in an embodiment of this utility model;

[0018] Figure 4 yes Figure 3 Side view of the device shown;

[0019] Figure 5 This is a perspective view of the protective plate, wire harness box, and external cable in combination in an embodiment of this utility model;

[0020] Figure 6 yes Figure 5 Rear view of the device shown.

[0021] In the diagram: 1. Base plate; 11. Positive electrode plate; 111. Protective shell; 12. Negative electrode plate; 13. Limiting post shell; 2. Lithium battery module; 3. Protective cover; 30. Side plate; 31. Buckle cover; 311. Positioning vertical plate; 312. Positioning tube shell; 32. Insertion post; 4. Protective plate; 41. Outer frame; 411. Horizontal plate; 412. X-shaped frame; 413. Internal threaded tube; 42. Circuit board; 43. Metal elastic clip; 5. Wiring harness box; 51. Main box body; 52. Divider plate; 53. Flip-top cover; 6. External cable. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and should not be construed as limiting the present utility model or its application or use in any way. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and combinations thereof.

[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0025] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer aspects relative to the outline of each component itself.

[0026] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0027] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A lithium battery protection board 4 with a wire harness structure includes a base plate 1. Several sets of lithium battery modules 2 connected in series are evenly inserted and installed on the upper surface of the base plate 1. A protective cover 3 is fastened to the upper surface of each lithium battery module 2. Side plates 30 connected to the base plate 1 are provided on both sides of the protective cover 3. A protection plate 4 connected to the lithium battery module 2 is provided on one side of the protective cover 3. The protection plate 4 is fixedly connected to the protective cover 3, and a wire harness box 5 is fixedly installed on the inner side of the protection plate 4. An external cable 6 connected to the protection plate 4 is placed in the wire harness box 5. By evenly inserting and installing several sets of lithium battery modules 2 in series on the base plate 1 and fastening the protective cover 3 to their upper ends, the lithium battery modules 2 can be protected from external impacts and dust contamination. The protection plate 4 connected to the lithium battery module 2 on one side of the protective cover 3 can provide overcharge, over-discharge, and overcurrent protection for the lithium battery module 2, ensuring the safe and stable operation of the lithium battery. The inner side of the protection board 4 is equipped with a wire harness box 5 and an external cable 6, which realizes centralized management of the wire harness, avoids the tangling and mess of the wire harness, and facilitates the installation, maintenance and repair of the protection board 4.

[0029] Reference Figure 1 and Figure 2 The base plate 1 has a positive electrode plate 11 and a negative electrode plate 12 installed on one side, which are connected to the lithium battery module 2. Both the positive electrode plate 11 and the negative electrode plate 12 are fixedly connected to the base plate 1. The side of the base plate 1 also has an integrally formed protective shell 111 to protect the positive electrode plate 11 and the negative electrode plate 12. The installation of the positive electrode plate 11 and the negative electrode plate 12 on one side of the base plate 1 facilitates the connection between the lithium battery module 2 and the external circuit. The integrally formed protective shell 111 can protect the positive electrode plate 11 and the negative electrode plate 12 from external impacts, pressure, moisture and other factors, thus extending the service life of the positive and negative electrode plates 12 and improving the stability and safety of the battery connection. The upper surface of the base plate 1 is evenly provided with several sets of limiting post shells 13 that separate the lithium battery module 2. The limiting post shells 13 are integrally formed with the base plate 1. The limiting post shells 13 evenly arranged on the upper surface of the base plate 1 can separate the individual lithium battery modules 2, preventing them from squeezing and colliding with each other, thus ensuring the installation stability and safety of the lithium battery modules 2. At the same time, the limiting post shells 13 are integrally formed with the base plate 1, enhancing the overall integrity and strength of the structure.

[0030] Reference Figure 3 and Figure 4The protective cover 3 includes a snap-on cover 31 and insertion pins 32 that mate with the limiting post housing 13. The insertion pins 32 are evenly installed on the lower end face of the snap-on cover 31 and are fixedly connected to the snap-on cover 31. The insertion pins 32 that mate with the limiting post housing 13 are installed on the lower end face of the snap-on cover 31 of the protective cover 3. When installing the protective cover 3, the insertion pins 32 are inserted into the limiting post housing 13, enabling the protective cover 3 to accurately snap onto the lithium battery module 2, further improving the connection stability between the protective cover 3 and the base plate 1, and ensuring effective protection of the lithium battery module 2. A positioning vertical plate 311 is vertically installed on the side of the snap-on cover 31. The positioning vertical plate 311 is integrally formed with the snap-on cover 31, and a positioning tube housing 312 for mounting the protective plate 4 is fixedly installed on the outer side of the positioning vertical plate 311. The positioning vertical plate 311 and positioning tube shell 312 on the side of the cover 31 provide accurate positioning and support for the installation of the protection plate 4, so that the protection plate 4 can be firmly installed on the protection cover 3, ensuring the reliability of the connection between the protection plate 4 and the lithium battery module 2, and facilitating the normal protection function of the protection plate 4 for the lithium battery module 2.

[0031] Reference Figure 5 and Figure 6 The protection board 4 includes an outer frame 41 and a circuit board 42. It is fixedly mounted on the outer surface of the outer frame 41. The inner surface of the outer frame 41 is provided with metal elastic clips 43 that connect to the positive electrode plate 11 and the negative electrode plate 12. The metal elastic clips 43 are electrically connected to the circuit board 42. The metal elastic clips 43 on the inner surface of the outer frame 41 connect to the positive electrode plate 11 and the negative electrode plate 12, enabling the electrical connection between the protection board 4 and the lithium battery module 2. The metal elastic clips 43 have good elasticity and conductivity, ensuring the stability and reliability of the connection, while also facilitating the installation and removal of the protection board 4. The circuit board 42 is fixedly mounted on the outer surface of the outer frame 41, facilitating maintenance and repair of the circuit board 42. The outer frame 41 includes a transverse plate 411, an X-shaped frame 412, and an internally threaded tube 413 corresponding to the positioning tube shell 312. The X-shaped frame 412 is fixedly installed on the upper end face of the transverse plate 411, and the internally threaded tube 413 is fixedly installed on the head of the X-shaped frame 412. The structural design of the transverse plate 411, X-shaped frame 412, and internally threaded tube 413 of the outer frame 41 enhances the structural strength and stability of the outer frame 41. The X-shaped frame 412 can effectively distribute the force, and the internally threaded tube 413 cooperates with the positioning tube shell 312, further improving the accuracy and firmness of the installation of the protective plate 4.

[0032] Reference Figure 5 and Figure 6The wire harness box 5 includes a main body 51, a partition plate 52, and a flip-top cover 53. The partition plate 52 is fixedly installed in the middle of the main body 51, and the flip-top cover 53 is rotatably installed at both ends of the upper surface of the main body 51, with one end of the flip-top cover 53 rotatably connected to the main body 51. The design of the main body 51, partition plate 52, and flip-top cover 53 of the wire harness box 5 allows external cables 6 to be neatly placed in the main body 51. The partition plate 52 can separate different types of cables to avoid mutual interference. The flip-top cover 53 facilitates the retrieval and organization of cables, improving the efficiency of wire harness management.

[0033] Working principle: During actual installation, several sets of series-connected lithium battery modules 2 are evenly inserted and installed on the upper surface of the base plate 1, so that the lithium battery modules 2 and the limiting post housing 13 cooperate with each other to ensure the accurate installation position of the lithium battery modules 2. The insertion post 32 of the protective cover 3 is aligned with the limiting post housing 13 and inserted, so that the protective cover 3 is fastened to the upper surface of the lithium battery module 2. The side plate 30 is connected to the base plate 1 by bolts. Then, the protective plate 4 is connected to the positioning tube housing 312 on the positioning vertical plate 311 of the protective cover 3 through the internal threaded insertion tube 413 of the outer frame 41, and the protective plate 4 is fixed to the protective cover 3 by bolts. At the same time, the metal elastic clip 43 is connected to the positive electrode plate 11 and the negative electrode plate 12 to achieve electrical connection. After the two external cables 6 are arranged, they are placed in the main box 51 of the wire harness box 5. Different types of cables are separated by the partition plate 52, and then the flip-top cover 53 is closed. One end of the external cable 6 is connected to the circuit board (42), and the other end can be pulled out directly from the main box 51 for external use.

[0034] When the lithium battery module 2 is charging or discharging, the circuit board 42 of the protection board 4 is connected to the positive and negative terminals of the lithium battery module 2 via metal elastic clips 43, monitoring parameters such as voltage and current of the lithium battery module 2 in real time. In case of overcharging, over-discharging, or overcurrent, the circuit board 42 will take appropriate protective measures, such as cutting off the circuit, to ensure the safe operation of the lithium battery module 2. The external cable 6 is used to connect the lithium battery module 2 to external devices for energy transmission and control.

[0035] The base plate 1 can be made of high-strength engineering plastics, such as polycarbonate (PC) or polypropylene (PP), which have good mechanical and insulating properties. Its thickness can be selected according to actual needs, generally 3-5 mm. The cover 31 and plug-in post 32 of the protective cover 3 can also be made of the same engineering plastic material as the base plate to ensure structural consistency and stability. The metal elastic clip 43 can be made of copper alloy material, such as phosphor bronze, which has good elasticity and conductivity. The main body 51, partition plate 52, and flip-top cover 53 of the wire harness box 5 can be made of ABS plastic, which has good toughness and corrosion resistance. The positive electrode plug 11 and negative electrode plug 12 can be made of copper material with nickel plating to improve their conductivity and oxidation resistance.

[0036] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A lithium battery protection board with a wire harness structure, comprising a base plate (1), characterized in that: Several sets of series-connected lithium battery modules (2) are evenly inserted and installed on the upper surface of the base plate (1), and a protective cover (3) is fastened and installed on the upper surface of the lithium battery module (2). Side plates (30) connected to the base plate (1) are provided on both sides of the protective cover (3). A protective plate (4) connected to the lithium battery module (2) is provided on one side of the protective cover (3). The protective plate (4) is fixedly connected to the protective cover (3), and a wire harness box (5) is fixedly installed on the inner side of the protective plate (4). An external cable (6) connected to the protective plate (4) is placed in the wire harness box (5).

2. A lithium battery protection board with a wire harness structure according to claim 1, characterized in that: A positive electrode plate (11) and a negative electrode plate (12) connected to the lithium battery module (2) are installed on one side of the base plate (1). The positive electrode plate (11) and the negative electrode plate (12) are fixedly connected to the base plate (1). A protective shell (111) for protecting the positive electrode plate (11) and the negative electrode plate (12) is integrally formed on the side of the base plate (1).

3. A lithium battery protection board with a wire harness structure according to claim 2, characterized in that: The upper surface of the base plate (1) is uniformly provided with several sets of limiting post shells (13) that separate the lithium battery modules (2), and the limiting post shells (13) are integrally formed with the base plate (1).

4. A lithium battery protection board with a wire harness structure according to claim 3, characterized in that: The protective cover (3) includes a snap cover (31) and a plug-in post (32) that cooperates with the limiting post shell (13). The plug-in post (32) is evenly installed on the lower end face of the snap cover (31) and the plug-in post (32) is fixedly connected to the snap cover (31).

5. A lithium battery protection board with a wire harness structure according to claim 4, characterized in that: A positioning plate (311) is vertically installed on the side of the cover (31). The positioning plate (311) is integrally formed with the cover (31), and a positioning tube shell (312) for installing the protective plate (4) is fixedly installed on the outer side of the positioning plate (311).

6. A lithium battery protection board with a wire harness structure according to claim 5, characterized in that: The protection plate (4) includes an outer frame (41) and a circuit board (42). The outer frame (41) is fixedly installed on the outer side. The inner side of the outer frame (41) is provided with a metal elastic clip (43) connected to the positive electrode plate (11) and the negative electrode plate (12). The metal elastic clip (43) is electrically connected to the circuit board (42).

7. A lithium battery protection board with a wire harness structure according to claim 6, characterized in that: The outer frame (41) includes a horizontal plate (411), an X-shaped frame (412), and an internal threaded tube (413) corresponding to the positioning tube shell (312). The X-shaped frame (412) is fixedly installed on the upper end face of the horizontal plate (411), and the internal threaded tube (413) is fixedly installed on the head of the X-shaped frame (412).

8. A lithium battery protection board with a wire harness structure according to claim 7, characterized in that: The wire harness box (5) includes a main box body (51), a partition plate (52) and a flip-top cover (53). The partition plate (52) is fixedly installed in the middle of the main box body (51), and the flip-top cover (53) is rotatably installed at both ends of the upper surface of the main box body (51), and one end of the flip-top cover (53) is rotatably connected to the main box body (51).

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