Battery pack case structure

Abstract

The application relates to a battery Pack machine box structure suitable for a battery module, which comprises a box body, a module fixing frame, a cover plate, a maintenance window and a hoisting frame; the module fixing frame is arranged in the box body; two ends of the top of the box body are symmetrically provided with L-shaped tables; the L-shaped table comprises a vertical part and a platform part which are arranged in one piece; one end of the cover plate is connected with the vertical part of one of the L-shaped tables, and the other end is connected with the vertical part of the other L-shaped table; the two sides of the cover plate are connected with the top of the two sides of the box body respectively; the hoisting frame is arranged on the platform part; the maintenance window is arranged on the cover plate; the height of the module fixing frame is matched with the battery module, and the height of the module fixing frame is smaller than the height of the box body. The application can effectively reduce the size of the box body in the X / Y direction, increase the available space of the vehicle body, and improve the volume energy density of the battery system.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery technical field especially relates to a battery Pack machine case structure. BACKGROUND

[0002] With the in-depth development of new energy industries such as energy storage, photovoltaic and wind energy, various new energies are integrated to form complementary energy stations. Complementary energy stations generally include wind power energy storage power stations, photovoltaic energy storage power stations and wind-solar energy storage power stations.

[0003] Energy storage batteries have high energy density, long service life, high rated voltage and strong adaptability to high and low temperatures, and are one of the most widely used batteries. With the development of communication technology, more and more communication base stations are being built, and energy storage cabinets, as an important part of the base station power supply system, are important equipment for ensuring the normal operation of communication base stations.

[0004] In the existing energy storage cabinet, the electrical components, modules and accessories of the PACK box are integrated, and the lifting lugs, connectors and other accessory interfaces are mostly arranged in the X / Y direction of the box body in an external manner, which greatly increases the X / Y size of the box body, is not convenient for fixing the modules, reduces the available space of the frame, and also reduces the volume energy density of the battery. Moreover, when the battery PACK system is electrically diagnosed, the battery and accessory system are easily exposed, which has a great safety hazard. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a battery Pack machine case structure to solve the technical problems of the existing battery cabinet, such as large size of the box body in X / Y direction, small available space of the frame, low volume energy density of the battery, difficulty in fixing the modules and inconvenience in battery maintenance and diagnosis.

[0006] To achieve the above-mentioned purpose, the utility model embodiment provides a battery Pack machine case structure suitable for battery modules, which comprises a box body, a module fixing frame, a cover plate, a maintenance window and a lifting frame. The module fixing frame is arranged in the box body. Two ends of the top of the box body are symmetrically provided with a "L"-shaped table. The "L"-shaped table comprises a vertical part and a platform part arranged integrally. One end of the cover plate is connected with the vertical part of one of the "L"-shaped tables, and the other end is connected with the vertical part of the other "L"-shaped table. The two sides of the cover plate are connected with the top of the two sides of the box body respectively. The lifting frame is arranged on the platform part. The maintenance window is arranged on the cover plate. The height of the module fixing frame is adapted to the battery module, and the height of the module fixing frame is less than the height of the box body.

[0007] As a preferred implementation form, the cover plate is provided with an access hole matched with the maintenance window, the access hole is protruded from the cover plate, the maintenance window is covered on the access hole, and the maintenance window is communicated with the box through the access hole.

[0008] As a preferred implementation form, a plurality of connection terminals or connection interfaces for external connection are arranged on one side of the access hole, a pressure relief assembly is arranged on the other side of the access hole, and the connection terminals or the connection interfaces are arranged away from the pressure relief assembly.

[0009] As a preferred implementation form, the box and the L-shaped table are integrally formed, and the box and the L-shaped table are matched; the lifting frame is matched with the platform part.

[0010] As a preferred implementation form, the lifting frame is provided with two, the two lifting frames are symmetrically arranged, and the lifting frame is one-to-one corresponding to the platform part.

[0011] As a preferred implementation form, each lifting frame comprises a first lifting buckle, a connecting part and a second lifting buckle which are integrally arranged, and the connecting part is arranged between the first lifting buckle and the second lifting buckle.

[0012] As a preferred implementation form, the module fixing frame comprises a first side plate, a second side plate, a first end plate and a second end plate which are enclosed; the first side plate and the second side plate are symmetrically arranged, the first end plate and the second end plate are symmetrically arranged; the outer side of the first end plate and the second end plate is provided with a support rod, and each support rod is fixed to the bottom of the box.

[0013] As a preferred implementation form, the first side plate, the second side plate, the first end plate and the second end plate are provided with outwardly extending support tables on the side close to the cover plate, and the support tables are matched with the box.

[0014] As a preferred implementation form, the inner side of the first side plate and the second side plate is provided with a plurality of protrusions, and the plurality of protrusions are equally spaced; the spacing is matched with the width of the battery module.

[0015] As a preferred implementation form, the protrusions of the first side plate and the protrusions of the second side plate are symmetrically arranged; the protrusions are hollow protrusions.

[0016] As a preferred implementation form, the inner side of the first end plate and the second end plate is provided with a groove, and the groove of the first end plate and the groove of the second end plate are symmetrically arranged.

[0017] The utility model discloses a technical scheme has the following beneficial effects: the application is through setting up module fixed seat, sets up maintenance window on the cover, makes electrical control system and battery module realize layered formula setting, electrical control system sets up the top of battery module, is convenient for electrical diagnosis detection simultaneously, can effectively reduce the size of box in X / Y direction, and no longer occupies the external space of box, can increase the space of car body can use, and effectively improved the volume energy density of battery system. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of battery Pack machine case structure of an embodiment of the utility model;

[0019] Figure 2 It is the explosion structure schematic diagram of battery Pack machine case structure of Figure 1

[0020] Figure 3 It is the structure schematic diagram of module fixed frame of Figure 2 DETAILED DESCRIPTION

[0021] The technical scheme in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] It should be noted that if the utility model embodiments involve directional indications (such as up, down, left, right, front, back, top, bottom, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0023] ​​In this application, unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; 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 internal communication of two elements or the interaction relationship of two elements, unless otherwise expressly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0024] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a mediating element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a mediating element.

[0025] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.

[0026] As shown in Figures 1 to 3 The utility model discloses a battery Pack machine case structure is applicable to battery module (not marked in the drawing), including box 10, module fixed frame 20, apron 30, maintenance window 40 and hoist frame 50, module fixed frame 20 sets up in box 10, the both ends of the top of box 10 symmetry is provided with " L " type platform 11, " L " type platform 11 includes the vertical part 111 and platform part 112 of integrative setting, one end of apron 30 is connected with the vertical part 111 of one of " L " type platform 11, and the other end is connected with the vertical part 111 of another " L " type platform 11, both sides of apron 30 are connected with the top of both sides of box 10 respectively, hoist frame 50 sets up on platform part 112, maintenance window 40 sets up on apron 30, the height of module fixed frame 20 is adapted to set with battery module, and the height of module fixed frame 20 is less than the height of box 10.

[0027] The height of the module fixing frame 20 is adapted to the battery module, and the height of the module fixing frame 20 is less than the height of the box 10, so that the electrical control system and the battery module are arranged in a layered manner, the electrical control system is arranged above the battery module, the size of the box in the X / Y direction is effectively reduced, the external space of the box is not occupied, the available space of the vehicle body is increased, and the volume energy density of the battery system is effectively improved.

[0028] Moreover, the maintenance window is arranged on the cover plate, and the electrical fault detection of the electrical control system can be performed through the maintenance window, without exposing the internal battery and the electrical control system, so that the protection of the battery and the electrical control system during electrical fault diagnosis is effectively improved.

[0029] As a preferred embodiment, the cover plate 30 is provided with an access hole 31 adapted to the maintenance window 40, the access hole 31 is arranged protruding from the cover plate 30, the maintenance window 40 is covered on the access hole 31, and the maintenance window 40 is arranged in communication with the box 10 through the access hole 31.

[0030] As a preferred embodiment, a plurality of connection terminals 60 or connection interfaces 70 for external connection are arranged on one side of the access hole 31, a pressure relief assembly 80 is arranged on the other side of the access hole 31, and the connection terminals 60 or the connection interfaces 70 are arranged away from the pressure relief assembly 80.

[0031] As a preferred embodiment, the box 10 and the "L"-shaped table 11 are integrally formed and arranged in an adapted manner, and the hoisting frame 50 is arranged in an adapted manner with the platform portion 112.

[0032] As a preferred embodiment, two hoisting frames 50 are arranged in a symmetrical manner, and the hoisting frames 50 are arranged in a one-to-one correspondence with the platform portion 112.

[0033] As a preferred embodiment, each hoisting frame 50 comprises a first lifting buckle 51, a connecting portion 52 and a second lifting buckle 53 arranged integrally, and the connecting portion 52 is arranged between the first lifting buckle 51 and the second lifting buckle 53.

[0034] As a preferred embodiment, the module fixing frame 20 comprises a first side plate 21, a second side plate 22, a first end plate 23 and a second end plate 24 which are arranged in a closed manner; the first side plate 21 and the second side plate 22 are symmetrically arranged, and the first end plate 23 and the second end plate 24 are symmetrically arranged; a support rod 90 is arranged on the outer side of each of the first end plate 23 and the second end plate 24, and each support rod 90 is fixed to the bottom of the box body 10.

[0035] In the embodiment of the present application, the two support rods 90 are symmetrically arranged, the fixing of the module fixing frame 20 is realized through the support rods 90, which is simple and convenient and easy to realize, and the battery module and the electrical control system are arranged in a hierarchical manner in the Z direction of the box body while effectively fixing the battery module, thereby effectively saving the space of the box body and effectively improving the volumetric energy density of the battery.

[0036] As a preferred embodiment, the first side plate 21, the second side plate 22, the first end plate 23 and the second end plate 24 are provided with a support table 100 extending outwardly on the side close to the cover plate 30, and the support table 100 is arranged in adaptation with the box body 10. By circumferentially arranging the support table 100 on the side close to the change of the module fixing frame, the space for accommodating the electrical control system can be provided while effectively fixing the battery module, so that the battery module and the electrical control system are arranged in a hierarchical manner in the Z direction of the box body, the maintenance and detection of the electrical control system are facilitated, the space of the box body is effectively saved, and the volumetric energy density of the battery can be effectively improved.

[0037] As a preferred embodiment, the inner side of each of the first side plate 21 and the second side plate 22 is provided with a plurality of protrusions 110, and the plurality of protrusions 110 are arranged at equal intervals; the interval is arranged in adaptation with the width of the battery module. In this way, the battery module is arranged in the groove between two protrusions, and the adjacent two protrusions play a fixing role on the battery module, so that the fixing of the battery module can be realized without too many fixing accessories, the space of the box body is effectively saved, the volumetric energy density of the battery can be effectively improved, and a better heat dissipation effect can be achieved.

[0038] As a preferred embodiment, the protrusions 110 of the first side plate 21 and the protrusions 110 of the second side plate 22 are symmetrically arranged; and the protrusions 110 are hollow protrusions. In this way, the space of the box body is effectively saved, the volumetric energy density of the battery can be effectively improved, and a better heat dissipation effect can be achieved.

[0039] As a preferred implementation, the inner side of the first end plate 23 and the second end plate 24 is provided with a groove 120, the groove 120 of the first end plate 23 is symmetrically arranged with the groove 120 of the second end plate 24. The groove 120 is arranged in this way, which can provide space for accommodating the electrical control system while effectively fixing the battery module, so that the battery module and the electrical control system are arranged in layers in the Z direction of the box body, which can effectively improve the volume energy density of the battery, and can also play a good heat dissipation effect.

[0040] The utility model discloses simple structure, high space utilization, convenient installation, better stability, economic and practical, has broad application prospect.

[0041] The above-mentioned is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and the equivalent structural transformation of the utility model specification and the attached drawing contents under the utility model concept of the utility model, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A battery pack chassis structure, characterized in that, This device is applicable to battery modules and includes a housing, a module mounting bracket, a cover plate, a maintenance window, and a lifting frame. The module mounting bracket is disposed inside the housing. The top of the housing has symmetrically arranged "L"-shaped platforms at both ends. Each "L"-shaped platform includes an integrally formed vertical section and a platform section. One end of the cover plate is connected to the vertical section of one of the "L"-shaped platforms, and the other end is connected to the vertical section of the other "L"-shaped platform. Both sides of the cover plate are connected to the top of both sides of the housing. The lifting frame is disposed on the platform section. The maintenance window is disposed on the cover plate. The height of the module mounting bracket is adapted to the battery module, and the height of the module mounting bracket is less than the height of the housing.

2. The battery pack chassis structure according to claim 1, characterized in that, The cover plate is provided with an inspection port adapted to the maintenance window, and the inspection port protrudes from the cover plate; the maintenance window covers the inspection port, and the maintenance window is connected to the housing through the inspection port.

3. The battery pack chassis structure according to claim 2, characterized in that, The inspection port has multiple connection terminals or interfaces for connecting to the outside on one side, and a pressure relief assembly is provided on the other side of the inspection port, with the connection terminals or interfaces located away from the pressure relief assembly.

4. The battery pack chassis structure according to claim 1, characterized in that, The box body and the L-shaped platform are integrally formed and adapted to each other; the hoisting frame is adapted to the platform.

5. The battery pack chassis structure according to claim 1, characterized in that, There are two hoisting frames, which are symmetrically arranged and correspond one-to-one with the platform section; Each of the lifting frames includes an integrally formed first lifting buckle, a connecting part, and a second lifting buckle, wherein the connecting part is disposed between the first lifting buckle and the second lifting buckle.

6. The battery pack chassis structure according to claim 1, characterized in that, The module fixing frame includes a first side plate, a second side plate, a first end plate, and a second end plate arranged in an enclosing manner; the first side plate and the second side plate are symmetrically arranged, and the first end plate and the second end plate are symmetrically arranged; a support rod is provided on the outer surface of the first end plate and the second end plate, and each support rod is fixed to the bottom of the box.

7. The battery pack chassis structure according to claim 6, characterized in that, The first side plate, the second side plate, the first end plate, and the second end plate are all provided with outwardly extending support platforms on the side near the cover plate, and the support platforms are adapted to fit the box body.

8. The battery pack chassis structure according to claim 6, characterized in that, Both the first side plate and the second side plate have multiple protrusions on their inner surfaces, and the multiple protrusions are equally spaced; the spacing is adapted to the width of the battery module.

9. The battery pack chassis structure according to claim 8, characterized in that, The protrusions on the first side plate and the protrusions on the second side plate are symmetrically arranged; the protrusions are hollow protrusions.

10. The battery pack chassis structure according to claim 6, characterized in that, The inner surfaces of the first end plate and the second end plate are provided with grooves, and the grooves of the first end plate and the second end plate are symmetrically arranged.

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