Rotary compression type tail locking device for battery system

Abstract

The utility model discloses a rotary compression type tail locking device for a battery system, and belongs to the technical field of battery systems, the battery system comprises a rectangular shell, a plurality of partition plates are horizontally arranged in the rectangular shell, and battery box bodies are arranged among the partition plates; the rotary pressing type tail locking device comprises a plurality of pressing plates arranged on the upper surface of each partition plate. The bolt holes are formed in the upper top plate, the lower bottom plate, the partition plates and the pressing plates of the rectangular shell; the pull rods are used for connecting the upper top plate, the lower bottom plate, the partition plate and the pressing plate through the bolt holes; wherein a lower rotating plate is mounted at the lower end of the pull rod; and a nut is mounted at the lower end of the pull rod. According to the utility model, the tail part of the module is self-locked by adopting a rotary compression type locking structure, and when the battery module is pushed into the insertion device along the structural frame, the tail part of the module is fixedly restrained, so that the stability of a battery system in a vibration environment is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery systems, and in particular relates to a rotary pressing type tail locking device for a battery system. Background Art

[0002] At present, most large battery systems use a drawer-type structure, that is, the battery is made into a module and inserted into the overall steel frame structure to achieve the series-parallel integration of the battery as a whole. Usually, the battery system uses a limiter to save space. However, due to the overall space limitation of the battery system, the space in the tail area of ​​the plug-in is too small, making it inconvenient for manual bolting and fixing the tail of the battery module. When it is impossible to completely fix it, the tail uses a slot to position and constrain the position of the battery box. This fixing method has the following defects:

[0003] 1) When the battery system is in a vibrating environment, the card slot does not firmly constrain the entire box, which may cause the tail to shift.

[0004] 2) Since the tail is not completely fixed during the vibration process, the stress at the fixing point at the front of the battery module increases, increasing the risk of component breakage.

[0005] Based on the current design scheme, it is necessary to design a fixing method without bolting to fix the tail of the module in the battery system. Utility Model Content

[0006] In view of the problems existing in the prior art, the utility model provides a rotary compression tail locking device for a battery system, which adopts a rotary compression locking structure to self-lock the tail of the module. When the battery module is pushed into the insertion device along the structural frame, the module tail is fixed and constrained, ensuring the stability of the battery system in a vibration environment. The unlocking control is designed to facilitate the removal of the module during the later maintenance process.

[0007] The technical solution adopted by the utility model is:

[0008] A rotary compression tail locking device for a battery system, the battery system comprising a rectangular shell, a plurality of partitions are horizontally arranged inside the rectangular shell, and a battery box is arranged between the partitions; the rotary compression tail locking device comprises:

[0009] A plurality of pressure plates are arranged on the upper surface of each partition;

[0010] A plurality of bolt holes are provided on the upper top plate, the lower bottom plate, each partition plate and the pressure plate of the rectangular housing;

[0011] A plurality of tie rods, wherein the tie rods connect the upper top plate, the lower bottom plate, the partition plate and the pressure plate through the bolt holes; wherein:

[0012] A lower rotating plate is installed at the lower end of the pull rod; a nut is installed at the lower end of the pull rod.

[0013] In a feasible technical solution, the pressing plate is a rectangular parallelepiped structure, and the dimensions of the pressing plate are a×b×c, wherein a is greater than b, and b is greater than c.

[0014] In a feasible technical solution, a bolt hole is provided inside the middle point of the b side of the ab surface of the pressure plate.

[0015] In a feasible technical solution, the lower rotating plate is a rectangular parallelepiped structure, and the size of the lower rotating plate is l×m×n, wherein l is greater than m, and m is greater than n.

[0016] In a feasible technical solution, a bolt hole is provided inside the middle point of the n side of the mn surface of the lower rotating plate.

[0017] Compared with the prior art, the advantages and positive effects of this application are:

[0018] 1. The utility model can improve the fixation of the tail of the battery module and reduce the probability of deflection and displacement of the tail of the module during vibration.

[0019] 2. The utility model reduces the stress of the front fixing point and reduces the risk of component breakage due to vibration.

[0020] 3. The utility model is detachable. When you want to pull out the battery box, you can pull out the battery box by rotating the lower rotating plate, which is convenient for module maintenance.

[0021] 4. The self-locking device in the utility model can be locked by mechanical rotation and compression. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural diagram of a preferred embodiment of the utility model;

[0024] Among them: 1. Lower rotating plate; 2. Pull rod; 3. Nut; 4. Pressing plate; 5. Battery box. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0026] In the description of the invention of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention of the utility model can be understood according to specific circumstances.

[0027] See also Figure 1 It should be noted that in order to facilitate the clear display of the lower transfer board, Figure 1 The battery system in the embodiment is an inverted structure, that is, the upper plate is located at the bottom and the lower plate is located at the top; at the same time, the rear of the box is a closed space, and the rear plate is made transparent for the sake of clarity, that is, the rear plate is not displayed;

[0028] A rotary compression tail locking device for a battery system, the battery system comprising a rectangular housing 5 made of high-strength material, a plurality of partitions being arranged horizontally inside the rectangular housing 5, the spacing of the partitions being determined according to the size of a specific battery box, and a battery box being arranged between the partitions; the rotary compression tail locking device comprising:

[0029] A plurality of pressing plates 4 are arranged on the upper surface of each partition; the pressing plate 4 may be a rectangular parallelepiped structure, and the size of the pressing plate 4 is a×b×c, wherein a is greater than b, and b is greater than c.

[0030] A plurality of bolt holes are provided on the upper top plate, the lower bottom plate, each partition plate and the pressure plate 4 of the rectangular housing 5;

[0031] A plurality of tie rods 2, wherein the tie rods 2 connect the upper top plate, the lower bottom plate, the partition plate and the pressure plate 4 through the bolt holes; wherein:

[0032] A lower rotating plate 1 is installed at the lower end of the pull rod 2 ; a nut 3 is installed at the lower end of the pull rod 2 .

[0033] A bolt hole is provided inside the middle point of the b side of the ab surface of the pressure plate 4 .

[0034] The lower rotating plate 1 may be a rectangular parallelepiped structure, and the size of the lower rotating plate 1 is l×m×n, wherein l is greater than m, and m is greater than n.

[0035] A bolt hole is provided inside the middle point of the n side of the mn surface of the lower rotating plate 1 .

[0036] The rotating pin fixed to the tail is divided into four parts:

[0037] 1. The upper fixing nut 3 of the rotating pin: The nut is fixed on the upper part of the battery system, and a bolt hole is opened in the middle to be bolted to the pull rod 2 of the rotating pin.

[0038] 2. Pull rod 2 of the rotating pin: connected to the fixing nut at the upper part and connected to the pressure plate to drive the pressure plate to rotate.

[0039] 3. Turn the pin pressure plate 4: Connect the pull rod and turn it to go deep into the fixing groove of the battery box. Press the battery box at the rear of the battery box to increase the rear fixing point of the battery box.

[0040] 4. Lower rotating plate 1 of the rotating pin: When the battery box is pushed into the fixing frame, rotate the rotating plate so that the pressing plate enters the thickness slot of the battery box to press the battery.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A rotary compression tail locking device for a battery system, the battery system comprising a rectangular housing (5), a plurality of partitions being arranged horizontally inside the rectangular housing (5), and a battery box being arranged between the partitions; characterized in that: The rotary compression tail locking device comprises: A plurality of pressing plates (4) are arranged on the upper surface of each partition; A plurality of bolt holes are arranged on the upper top plate, the lower bottom plate, each partition plate and the pressure plate (4) of the rectangular housing (5); A plurality of tie rods (2), wherein the tie rods (2) connect the upper top plate, the lower bottom plate, the partition plate and the pressure plate (4) through the bolt holes; wherein: A lower rotating plate (1) is installed at the lower end of the pull rod (2); and a nut (3) is installed at the lower end of the pull rod (2).

2. The rotary compression tail locking device for a battery system according to claim 1, characterized in that: The pressing plate (4) is a rectangular parallelepiped structure, and the dimensions of the pressing plate (4) are a×b×c, wherein a is greater than b, and b is greater than c.

3. The rotary pressing tail locking device for a battery system according to claim 2, characterized in that: A bolt hole is provided on the inner side of the middle point of the b side of the ab surface of the pressure plate (4).

4. The rotary pressing tail locking device for a battery system according to claim 1, characterized in that: The lower rotating plate (1) is a rectangular parallelepiped structure, and the size of the lower rotating plate (1) is l×m×n, wherein l is greater than m, and m is greater than n.

5. The rotary pressing tail locking device for a battery system according to claim 4, characterized in that: A bolt hole is provided on the inner side of the middle point of the nth side of the mn surface of the lower rotating plate (1).

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