A front panel assembly for a battery pack and a battery pack

Abstract

This utility model relates to the field of battery pack technology, and discloses a front panel assembly and a battery pack. The front panel assembly includes: a panel body, on which at least one mounting cavity and a connecting post are provided, the connecting post extending away from the panel body and forming a bearing surface; a baffle, which can be opened and closed to cover the mounting cavity and has a locking hole aligned with the connecting post, the locking hole penetrating the baffle, and having a limiting surface flush with the bearing surface within the locking hole; and a locking member, which is detachably inserted into the locking hole and connected to the connecting post, and the head of the locking member simultaneously abutting against both the bearing surface and the limiting surface. The advantages of this utility model are that it is easy to maintain, structurally stable, and provides good protection.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, and in particular to a front panel assembly of a battery pack and a battery pack. Background Technology

[0002] In power battery packs or energy storage battery systems, the front panel assembly is typically located at the front of the battery pack, covering the mounting area of ​​critical electrical components such as wiring harness interfaces, control modules, sensors, and relays. To facilitate the periodic inspection, replacement, or maintenance of these electrical components, some solutions incorporate corresponding openable baffles on the panel body. However, in scenarios where the battery pack is externally mounted, screws are typically used to secure the baffles to prevent accidental opening. In existing technologies, directly tightening the baffles with screws results in the tightening force acting directly on the baffle body, causing localized stress concentration, which can easily lead to baffle dents, warping, or even cracking. This not only affects the product's appearance but also compromises the seal between the baffle and the panel body, thereby reducing the battery pack's protection level. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a front panel assembly and battery pack that are easy to maintain, have a stable structure and good protective performance.

[0004] The technical solution adopted by this utility model to solve its technical problem is to provide a front panel assembly of a battery pack, comprising:

[0005] A panel body, wherein the panel body is provided with at least one mounting cavity and a connecting post, the connecting post extending away from the panel body and forming a bearing surface;

[0006] A baffle plate, which can be opened and closed to cover the mounting cavity, and has a locking hole aligned with the connecting post, the locking hole penetrating the baffle plate, and the locking hole having a limiting surface flush with the bearing surface;

[0007] A locking member is detachably inserted into the locking hole and connected to the connecting post, and the head of the locking member simultaneously abuts against the bearing surface and the limiting surface.

[0008] In the front panel assembly of the aforementioned battery pack, the locking hole includes a first channel and a second channel arranged sequentially and connected along the through-path of the locking member, wherein the first channel and the second channel have a diameter difference to form the limiting surface.

[0009] In the aforementioned front panel assembly of a battery pack, the connecting post is perpendicular to the panel body and has a connecting end extending into the second channel and flush with the limiting surface, and the bearing surface is disposed on the end of the connecting end.

[0010] In the aforementioned front panel assembly of a battery pack, the inner diameter of the first channel is larger than the inner diameter of the second channel, the outer diameter of the head is larger than the inner diameter of the second channel, and the outer diameter of the connecting end is smaller than the inner diameter of the second channel.

[0011] In the aforementioned front panel assembly of a battery pack, the connecting end has a threaded hole arranged along its own length direction, and the locking member includes a screw portion connected to the head, the screw portion being screwed into the threaded hole.

[0012] In the aforementioned front panel assembly of a battery pack, one side of the baffle is rotatably connected to the panel body, and the other side is provided with a pin. The panel body is provided with a pin seat that engages with the pin. When the baffle is closed on the panel body, the pin engages with the pin seat and locks the baffle on the panel body. When the pin is pressed, the pin separates from the pin seat and allows the baffle to rotate relative to the panel body.

[0013] In the aforementioned front panel assembly of a battery pack, the panel body is further provided with a ventilation area, which is aligned with the heat dissipation structure inside the battery pack body, and the ventilation area is provided with a vent penetrating the panel body.

[0014] In the aforementioned front panel assembly of a battery pack, there are two sets of mounting cavities arranged symmetrically on the left and right and communicating with the internal space of the battery pack body. Each set of mounting cavities is provided with a corresponding baffle. The ventilation area is located in the panel body area between the two baffles. The panel body is detachably provided with a ventilation plate covering the ventilation opening, and the ventilation plate is provided with multiple ventilation holes.

[0015] In the aforementioned front panel assembly of a battery pack, clearance grooves are provided on both sides of the panel body. The clearance grooves are recessed along the edge of the panel body towards the center of the panel body, and the size of the clearance grooves is adapted to the lifting handle on the battery pack body.

[0016] The technical solution adopted by this utility model to solve its technical problem is to also provide a battery pack, which is equipped with the above-mentioned front panel assembly.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] 1. In this utility model, by setting a limiting surface in the locking hole of the baffle and designing it to be flush with the bearing surface of the connecting column, the preload and working load of the locking head can be directly transferred to the more rigid connecting column, rather than being borne by the baffle body. This design allows the baffle to only perform sealing and protection functions and not participate in the main mechanical load-bearing, thereby effectively avoiding baffle denting, warping or cracking caused by local stress concentration, ensuring the reliability of the sealing surface, and significantly improving the structural durability and environmental protection level of the front panel assembly.

[0019] 2. In this utility model, the locking hole includes a first channel and a second channel arranged sequentially and connected along the insertion direction of the locking component. The first channel and the second channel have a diameter difference to form a limiting surface. This design has a simple structure and is easy to integrally form through injection molding or stamping processes. It does not require additional limiting parts, and not only achieves reliable axial positioning and assembly guidance of the locking component, but also reduces manufacturing costs and assembly complexity, and improves product consistency and production efficiency.

[0020] 3. In this utility model, one side of the baffle is rotatably connected to the panel body, and the other side is provided with a pin that engages with the pin seat on the panel body. Both are configured to be unlocked by pressing. This design allows users to release the lock without tools by simply pressing the pin, enabling quick opening and closing of the baffle. This facilitates the inspection, replacement, and maintenance of electrical components such as wiring harness interfaces and control modules within the mounting cavity, greatly improving the maintainability, operational efficiency, and ease of operation of the battery pack. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front panel assembly of a battery pack according to the present invention.

[0022] Figure 2 This is a cross-sectional view of the front panel assembly of a battery pack according to the present invention.

[0023] Figure 3 This is an exploded view of the front panel assembly of a battery pack according to this utility model.

[0024] Figure 4 This is an exploded view of the front panel assembly of a battery pack according to this utility model from another perspective.

[0025] Figure 5 This is a schematic diagram of the battery pack structure of this utility model.

[0026] Figure 6 for Figure 5 Exploded view.

[0027] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0028] 100. Panel body; 110. Mounting cavity; 120. Connecting post; 121. Connecting end; 122. Bearing surface; 123. Threaded hole; 130. Pin seat; 140. Ventilation opening; 150. Clearance groove; 160. Rotating shaft; 200. Baffle; 210. Locking hole; 211. Limiting surface; 212. First channel; 213. Second channel; 220. Pin; 300. Locking element; 310. Head; 320. Screw part; 400. Ventilation plate; 410. Ventilation hole; 500. Battery pack body; 510. Lifting handle. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] like Figures 1 to 4As shown, in this embodiment, a front panel assembly of a battery pack includes:

[0035] The panel body 100 has at least one mounting cavity 110 and a connecting post 120 thereon. The connecting post 120 extends in a direction away from the panel body 100 and forms a bearing surface 122.

[0036] A baffle 200 is closable and covers the mounting cavity 110, and has a locking hole 210 aligned with the connecting post 120. The locking hole 210 penetrates the baffle 200, and a limiting surface 211 flush with the bearing surface 122 is provided inside the locking hole 210.

[0037] The locking element 300 is detachably inserted into the locking hole 210 and connected to the connecting post 120, with its head 310 simultaneously abutting against both the bearing surface 122 and the limiting surface 211. This design allows the preload and working load of the locking element 300 head 310 to be directly transferred to the more rigid connecting post 120, rather than being borne by the baffle 200 body. This ensures that the baffle 200 only performs sealing and protective functions and does not participate in the main mechanical load-bearing, effectively preventing the baffle 200 from denting, warping, or cracking due to local stress concentration, ensuring the reliability of the sealing surface, and significantly improving the structural durability and environmental protection level of the front panel assembly.

[0038] Specifically, such as Figures 1 to 4 As shown, the front panel assembly mainly includes a panel body 100 and a baffle 200 that can be opened and closed on the panel body 100. The panel body 100 is an integral structure made of plastic or metal materials, and has high structural rigidity, dimensional stability and environmental resistance (such as corrosion resistance and aging resistance). It is used to cover the electrical installation area at the front of the battery pack to protect key electrical components such as internal wiring harnesses, control modules, and relays.

[0039] Preferably, the panel body 100 is injection molded from high-strength engineering plastic, which not only has good mechanical properties and insulation characteristics, but also effectively reduces the overall weight of the battery pack, improves energy density and assembly convenience. At the same time, the plastic material facilitates the one-piece molding of complex structures, which is conducive to integrating multi-functional features such as connecting posts 120, ventilation areas, and clearance grooves 150.

[0040] Furthermore, the panel body 100 has a rectangular structure, and its outline is adapted to the front opening of the battery pack, resulting in a compact overall structure that facilitates assembly and sealing. Preferably, the panel body 100 is detachably connected to the battery pack housing via fasteners.

[0041] In this embodiment, the panel body 100 is provided with at least one rectangular mounting cavity 110 for accommodating electrical components. The mounting cavity 110 extends toward the interior of the battery pack and has a rectangular through hole penetrating the panel body 100 for communicating with the internal space of the battery pack body 500 to accommodate electrical components such as wiring harness interfaces, control modules, relays, and sensors, thereby realizing the connection and management of external operation and internal circuits.

[0042] Furthermore, the mounting cavity 110 is provided in two sets, arranged symmetrically along the center line of the panel body 100. This design not only facilitates the modular design of the electrical system and the partitioning of electrical modules of different types or functions, but also improves the neatness of wiring and space utilization. At the same time, the symmetrical structure helps to reduce internal stress during the injection molding process, improving the dimensional stability and appearance quality of the product.

[0043] In this embodiment, the panel body 100 is further provided with at least one connecting post 120. The connecting post 120 extends from the panel body 100 away from the interior of the battery pack and forms a flat bearing surface 122. This bearing surface 122 is used to form a coplanar fit with the limiting surface 211 when the locking member 300 is installed. The two are on the same geometric plane when the baffle 200 is closed, so as to jointly bear the axial preload applied by the head 310 of the locking member 300 and the working load under external vibration, impact and other conditions. This design allows the locking force to be directly transmitted to the more rigid panel body 100, avoiding the load concentration on the relatively weak baffle 200 body.

[0044] Preferably, the number and position of the connecting posts 120 correspond to the locking holes 210 on the baffle 200.

[0045] Furthermore, the connecting post 120 is a columnar protrusion structure, made of plastic integrally molded with the panel body 100, or an embedded metal insert, to meet different strength and durability requirements. Preferably, the connecting post 120 is a plastic post, manufactured integrally with the panel body 100 using an injection molding process. This design not only simplifies the assembly process and reduces the number of parts and production costs, but also improves the structural continuity and overall rigidity between the connecting post 120 and the panel body 100, avoiding the risk of loosening caused by a split connection.

[0046] Furthermore, the connecting post 120 is perpendicular to the panel body 100 and has a connecting end 121 extending into the second channel 213 and flush with the limiting surface 211, with a bearing surface 122 located at the end of the connecting end 121. This design allows the locking member 300 to simultaneously abut against the bearing surface 122 and the limiting surface 211 when it passes through the locking hole 210 and is fixed to the connecting post 120, forming a double-sided support structure.

[0047] Preferably, the outer diameter of the connecting end 121 is smaller than the inner diameter of the second channel 213, with a suitable gap between them. This facilitates assembly alignment, reduces installation resistance or jamming caused by positional deviations, and improves assembly efficiency and operational tolerance. Simultaneously, this gap design can accommodate the differences in thermal expansion of different materials (such as plastics and metals) under temperature changes, preventing structural stability from being affected by the accumulation of thermal stress.

[0048] Furthermore, the connecting post 120 has a threaded hole 123 arranged along its own length direction for engaging with the screw portion 320 of the locking member 300 to achieve detachable fixing.

[0049] In this embodiment, each mounting cavity 110 is provided with a corresponding baffle 200. The baffle 200 can be opened and closed to cover the mounting cavity 110, sealing it and protecting and isolating the internal electrical components. Preferably, the baffle 200 is made of plastic, possessing good mechanical strength, insulation properties, heat resistance, and aging resistance. Simultaneously, the plastic material reduces manufacturing costs and overall weight, contributing to improved energy density and ease of assembly of the battery pack.

[0050] Furthermore, the baffle 200 and the panel body 100 can be connected by a sliding or rotatable connection to achieve the opening and closing function. Preferably, one side of the baffle 200 is directly rotatably connected to the panel body 100 or rotatably connected through the ventilation plate 400. Specifically, an integrally molded plastic pivot 160, a metal hinge, or a hinge structure can be used for hinge connection, allowing the baffle 200 to rotate around the hinge axis to open or close, providing flexible operation and stable movement. Access to the internal components of the mounting cavity 110 can be achieved without additional disassembly, significantly improving maintenance efficiency.

[0051] Preferably, the upper and lower ends of one side of the baffle 200 are respectively provided with connecting holes, and the panel body 100 or the ventilation plate 400 is provided with a rotating shaft 160 that can be rotatably extended into the connecting holes. The cooperation between the rotating shaft 160 and the connecting holes forms a rotating pair, so that the baffle 200 can be rotated to open or close relative to the panel body 100 around the axis of the rotating shaft 160, thereby realizing the openable and closable function of the mounting cavity 110.

[0052] Furthermore, a pin 220 is provided on the other side of the baffle 200, and a pin seat 130 is provided on the panel body 100 to form a plug-in engagement with the pin 220. When the baffle 200 is closed on the panel body 100, the pin 220 engages with the pin seat 130 and locks the baffle 200 on the panel body 100, thereby temporarily fixing the baffle 200. When the pin 220 is pressed, the pin 220 separates from the pin seat 130 and allows the baffle 200 to rotate relative to the panel body 100, thereby realizing the opening operation.

[0053] It is worth noting that the connection between the pin 220 and the pin seat 130 is a detachable snap-fit ​​structure. Its basic construction principle has been applied in existing technology and will not be elaborated here.

[0054] Although the pin 220 and pin holder 130 provide convenient auxiliary locking and quick unlocking functions, when the battery pack is used alone outdoors, a more reliable main locking mechanism is needed to ensure that the baffle 200 can withstand greater external loads during long-term use. Therefore, in this embodiment, the baffle 200 is also provided with a locking hole 210 aligned with the connecting post 120, for detachable fixing through the engagement of the locking member 300 with the connecting post 120, providing additional locking force and enhancing the stability of the overall structure.

[0055] Furthermore, the locking hole 210 is a stepped hole penetrating the baffle 200, including a first channel 212 and a second channel 213 connected in sequence. The first channel 212 is located at the end near the outer side of the baffle 200, and the second channel 213 is located on the side near the panel body 100. The inner diameter of the first channel 212 is larger than the inner diameter of the second channel 213, and an annular stepped surface is formed at the transition between them. This stepped surface constitutes a limiting surface 211 for restricting the axial displacement of the locking member 300. When the baffle 200 is closed, the limiting surface 211 and the bearing surface 122 of the connecting post 120 are on the same plane, forming a coplanar mating structure. This design allows the head 310 of the locking member 300 to simultaneously abut against both the limiting surface 211 and the bearing surface 122 after installation, achieving double-sided support.

[0056] In this embodiment, the locking member 300 is detachably inserted into the locking hole 210 and connected to the connecting post 120, and the head 310 of the locking member 300 simultaneously abuts against the bearing surface 122 and the limiting surface 211. Specifically, the locking load of the locking member 300 is applied to both the limiting surface 211 and the bearing surface 122 through its head 310, and is thus directly transferred to the more rigid panel body 100, rather than being borne solely by the relatively weak baffle 200 body. This load transfer path effectively avoids dents, warping, or fatigue damage to the baffle 200 due to local stress concentration, ensuring the long-term fit and environmental protection performance of the sealing structure between the baffle 200 and the panel body 100, and significantly improving the structural durability and reliability of the front panel assembly.

[0057] Furthermore, the locking element 300 is a screw, including a head 310 and a threaded portion 320 connected thereto. The threaded portion 320 passes sequentially through the first channel 212 and the second channel 213, and is screwed into the threaded hole 123 provided inside the connecting post 120 to achieve a detachable fastening connection. The head 310 is located inside the first channel 212, and its outer diameter is larger than the inner diameter of the second channel 213 to ensure that the head 310 is stably accommodated in the larger diameter section space, while simultaneously achieving simultaneous abutment between the limiting surface 211 and the bearing surface 122.

[0058] In this embodiment, the panel body 100 is also provided with a ventilation area, which is aligned with the heat dissipation structure (such as a fan) inside the battery pack body 500, and the ventilation area is provided with a rectangular vent 140 that penetrates the panel body 100 to realize air circulation between the heat dissipation structure and the external environment.

[0059] Furthermore, the ventilation area is located in the panel body 100 area between the two baffles 200, that is, in the middle of the two mounting cavities 110. This area does not house high-voltage interfaces or sensitive electronic devices, so it is suitable as a ventilation channel, which can prevent external moisture and dust from directly washing over electrical connection parts, and can effectively utilize the front space of the panel to achieve passive or active heat dissipation.

[0060] Furthermore, the panel body 100 is detachably provided with a ventilation plate 400 covering the vent 140, and the ventilation plate 400 has a plurality of ventilation holes 410. This design eliminates the need to disassemble the entire front panel assembly when disassembling or maintaining the heat dissipation structure, greatly improving the convenience of disassembly, assembly and maintenance.

[0061] Preferably, the ventilation plate 400 is detachably connected to the panel body 100 by fasteners, and the multiple ventilation holes 410 are circular holes, rectangular holes or waist-shaped holes, and are arranged in a matrix-like regular pattern to maximize the ventilation area and improve heat dissipation efficiency while ensuring structural strength.

[0062] In this embodiment, the panel body 100 is provided with clearance grooves 150 on both sides to avoid structural components such as the lifting handle 510 on the battery pack body 500 during assembly. Specifically, the clearance grooves 150 are located on the left and right edges of the panel body 100, arranged symmetrically, and recessed towards the center along the edge of the panel body 100, forming a partial notch structure. The shape and size of the clearance grooves 150 are adapted to the lifting handle 510 on the battery pack body 500. When the panel body 100 is installed at the front end of the battery pack, the lifting handle 510 can be partially or completely embedded in the clearance grooves 150, achieving space sharing and structural avoidance. This design effectively avoids assembly interference between the front panel assembly and the lifting handle 510, ensuring that the panel body 100 can be smoothly installed in place, improving assembly compatibility and efficiency.

[0063] Preferably, the outline of the clearance groove 150 is rectangular or chamfered rectangular.

[0064] Based on the above embodiments of the front panel assembly, such as Figures 1 to 6 As shown, the present invention also provides a battery pack, which includes the aforementioned front panel assembly.

Claims

1. A front panel assembly for a battery pack, characterized in that, include: A panel body (100) is provided with at least one mounting cavity (110) and a connecting post (120), the connecting post (120) extending away from the panel body (100) and forming a bearing surface (122); A baffle (200) is openably covered on the mounting cavity (110) and has a locking hole (210) aligned with the connecting post (120). The locking hole (210) penetrates the baffle (200) and has a limiting surface (211) flush with the bearing surface (122) inside the locking hole (210). A locking member (300) is detachably inserted into the locking hole (210) and connected to the connecting post (120), and the head (310) of the locking member (300) simultaneously abuts against the bearing surface (122) and the limiting surface (211).

2. The front panel assembly of a battery pack according to claim 1, characterized in that, The locking hole (210) includes a first channel (212) and a second channel (213) arranged sequentially and connected along the through direction of the locking member (300). The first channel (212) and the second channel (213) have a diameter difference to form the limiting surface (211).

3. The front panel assembly of a battery pack of claim 2, wherein, The connecting post (120) is perpendicular to the panel body (100) and has a connecting end (121) extending into the second channel (213) and flush with the limiting surface (211), and the bearing surface (122) is located on the end of the connecting end (121).

4. The front panel assembly of a battery pack of claim 3, wherein, The inner diameter of the first channel (212) is larger than the inner diameter of the second channel (213), the outer diameter of the head (310) is larger than the inner diameter of the second channel (213), and the outer diameter of the connecting end (121) is smaller than the inner diameter of the second channel (213).

5. The front panel assembly of a battery pack according to claim 3, characterized in that, The connecting end (121) has a threaded hole (123) arranged along its own length direction, and the locking member (300) includes a screw portion (320) connected to the head (310), the screw portion (320) being screwed into the threaded hole (123).

6. The front panel assembly of a battery pack of claim 1, wherein, One side of the baffle (200) is rotatably connected to the panel body (100), and the other side is provided with a pin (220). The panel body (100) is provided with a pin seat (130) that engages with the pin (220). When the baffle (200) is closed on the panel body (100), the pin (220) engages with the pin seat (130) and locks the baffle (200) on the panel body (100). When the pin (220) is pressed, the pin (220) separates from the pin seat (130) and allows the baffle (200) to rotate relative to the panel body (100).

7. The front panel assembly of a battery pack of claim 1, wherein, The panel body (100) is also provided with a ventilation area, which is aligned with the heat dissipation structure inside the battery pack body (500), and the ventilation area is provided with a vent (140) that penetrates the panel body (100).

8. The front panel assembly of a battery pack of claim 7, wherein, The mounting cavity (110) is provided in two sets, arranged symmetrically on the left and right and communicating with the internal space of the battery pack body (500). Each set of mounting cavities (110) is provided with a corresponding baffle (200). The ventilation area is located in the panel body (100) area between the two baffles (200). The panel body (100) is detachably provided with a ventilation plate (400) covering the ventilation opening (140), and the ventilation plate (400) is provided with a plurality of ventilation holes (410).

9. The front panel assembly of a battery pack of claim 1, wherein, The panel body (100) is provided with clearance grooves (150) on both sides. The clearance grooves (150) are recessed along the edge of the panel body (100) toward the center of the panel body (100), and the size of the clearance grooves (150) is adapted to the lifting handle (510) on the battery pack body (500).

10. A battery pack, characterized by, The front panel assembly as described in any one of claims 1-9 is installed.

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