CN211480120U

CN211480120U - Battery unit easy to radiate and assemble

Info

Publication number: CN211480120U
Application number: CN201922452740.XU
Authority: CN
Inventors: 李爱莲; 刘增祥; 石钰; 王开瑞; 高斌; 杨伟英; 刘玉兴; 王丕杰
Original assignee: Shandong Yima Yangfan Electromechanical Co ltd
Current assignee: Shandong Yima Yangfan Electromechanical Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-11
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a battery unit who easily dispels the heat and assemble, include tip mount, spacer and concatenate the screw rod. The end fixing frame is provided with four fixing holes which are enclosed into a rectangle and used for clamping the battery packs arranged side by side. The spacer includes an integrally formed connecting portion, a spacer portion and a defining portion. The middle part of the connecting part is provided with a communicating hole. The limiting portion is in the shape of a long strip. The spacing part is in a strip sheet shape, is arranged at the lower part of the connecting part and is vertical to the limiting part for spacing two adjacent batteries. The tandem screw is inserted in the fixing hole and the communicating hole on the same axis, and two ends of the tandem screw are fixed by bolts so as to fix the end fixing frame, the spacing device and the battery together. The utility model relates to a battery field has and provides the headspace for the deformation that the thermal barrier shrinkage of battery leads to and has better radiating effect simultaneously.

Description

Battery unit easy to radiate and assemble

Technical Field

The utility model relates to a battery field specifically is a battery unit who easily dispels heat and assemble.

Background

Electric locomotives are commonly used during the operation of railcars. In actual operation, the operating voltage of the rail car is generally higher in level, and therefore, it is necessary to connect a plurality of batteries having lower voltage levels in series and parallel to realize the voltage level. It is necessary to arrange the batteries and then connect the lead wires. In the prior art, batteries are placed and then fixed, or foam is spaced. However, during the use and charge/discharge of the battery, a large amount of heat is generated, and the volume of the battery changes due to expansion with heat and contraction with cold. Thus if the arrangement is too tight, the two cells are close together, which can make it difficult for compression and possibly explosion to occur. Too much tightness not only causes extrusion but also causes poor heat dissipation. Therefore, a battery pack fixing device which has a good heat dissipation effect and reserves a space for deformation of a battery is designed to meet an urgent requirement.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: a battery cell with good heat dissipation, avoiding extrusion, and easy heat dissipation and assembly is provided.

The to-be-solved technical problem of the utility model is that: a battery cell that easily dispels heat and assemble, its characterized in that includes: the end fixing frames are arranged at two ends of a group of batteries arranged side by side, the end fixing frames are provided with four fixing holes, and the fixing holes are enclosed into a rectangle; the spacing devices are respectively arranged at four corners of the batteries and used for separating the two batteries and the batteries from the end fixing frame, the spacing devices are provided with communication holes, and the communication holes of the spacing devices positioned at the four corners of the batteries are respectively superposed with the axial leads of the four fixing holes; the screw rods are connected in series, are inserted in the fixing holes and the communication holes on the same axis, and are fixed at two ends by bolts.

Preferably, the spacing device comprises a connecting part, a spacing part and a limiting part which are integrally formed; the middle part of the connecting part is provided with a communicating hole; the limiting part is in a strip sheet shape and is arranged at the lower part of the connecting part, the plane of the limiting part is superposed with the axial lead of the communicating hole, the spacing part is in a strip sheet shape and is arranged at the lower part of the connecting part and is vertical to the limiting part for spacing two adjacent batteries, and an elastic ring or an elastic cushion is arranged on the spacing part; the connecting part is a cube, and the communicating hole is a circular hole.

Preferably, the end fixing frame comprises vertical rods arranged in parallel and at least two horizontal rods connected with the two vertical rods; the upper portion and the lower portion of the vertical rod are provided with fixing holes, the horizontal rod at the lowest end is higher than the bottom end of the vertical rod, and the horizontal rod at the lowest end and the lower ends of the two vertical rods are enclosed to form a containing clamping groove.

Preferably, the spacing part is provided with a spacing hole, an elastic ring or an elastic pad is clamped inside the spacing hole, and the thickness of the elastic ring or the elastic pad is greater than that of the spacing part.

Preferably, the edge of the spacing part is provided with at least two plane bulges, and the elastic ring or the elastic pad is arranged on the plane bulges.

Preferably, the edge of the spacing part is provided with at least two plane protrusions, the spacing hole is formed in the plane protrusions, an elastic ring or an elastic pad is clamped inside the spacing hole, and the thickness of the elastic ring is larger than that of the spacing part.

Preferably, the heat dissipation device further comprises a reinforcing rib integrally formed with the connecting portion, the spacing portion and the limiting portion, wherein the reinforcing rib and the spacing portion are located on two sides of the limiting portion, and the reinforcing rib is provided with heat dissipation holes.

Preferably, the end face of one of the orifices of the communicating hole of the connecting part is flush with one side of the spacing part.

Preferably, the outer side of the vertical rod is provided with ventilation grooves which are uniformly distributed in the vertical direction, and the length direction of the ventilation grooves is in the horizontal direction.

Preferably, the horizontal rod is provided with a mounting hole.

Preferably, the mounting hole of the horizontal rod positioned at the upper part is a screw hole.

The utility model has the advantages that:

1. providing a reserved space for deformation caused by thermal barrier contraction of the battery;

2. good heat dissipation effect.

Drawings

FIG. 1 is a front view of a spacer according to an embodiment of the present invention

Figure 2 is a side view of a spacer according to an embodiment of the present invention

Fig. 3 is a cross-sectional view of a spacer according to an embodiment of the present invention

Fig. 4 is a schematic view of a spacer according to an embodiment of the present invention

Fig. 5 is a schematic view of an end fixing frame according to an embodiment of the present invention

FIG. 6 is a schematic view of a horizontal bar according to an embodiment of the present invention

FIG. 7 is a schematic view of a self-contained package according to an embodiment of the present invention

In the figure:

920. a battery; 910. a bump; 900. placing the plate; 660. a ventilation groove; 930. connecting the screw rods in series; 640. mounting holes; 630. a fixing hole; 620. a horizontal bar; 610. a vertical rod; 600. a fixed mount; 500. reinforcing ribs; 220. a plane bulge; 400. an elastic ring; 210. a spacer hole; 300. a limiting part; 110. a communicating hole; 200. a spacer section; 100. a connecting portion;

Detailed Description

In order to make the technical solution and the beneficial effects of the present invention clearer, the following is a further detailed explanation of the embodiments of the present invention.

As shown, the utility model is an easy heat dissipation and battery unit of assembling, including spacer, end mount and concatenation screw 930. As shown in fig. 7, the end fixing brackets are provided at both ends of a group of batteries arranged side by side to define a battery pack. Meanwhile, in order to fix the battery pack to the end fixing bracket, a fixing hole 630 is formed in the end fixing bracket. Since the battery is rectangular, the fixing holes 630 are provided in four, and the four fixing holes enclose a rectangle.

The spacing device is used for separating the batteries so as to increase the gap between the two batteries and further achieve the function of efficient heat dissipation. The spacers are arranged in groups of four each. The four spacers in a group are located at the four corners of the cell, respectively. In order to achieve the function of fixing the battery pack by matching with the end fixing frame, the spacing devices are provided with communication holes 110, and the communication holes 110 of the spacing devices at four corners are respectively superposed with the axial leads of the four fixing holes 630. The utility model discloses a concatenate screw rod 930 and connect fixedly. The tandem screw 930 is a long rod and has threads at both ends. The screw rods are connected in series and inserted into the fixing holes and the communicating holes on the same axis, and then the two ends of the screw rods are fastened through screws, so that the end fixing frames at the two ends are extruded towards the middle.

Wherein the spacer includes a connecting portion 100, a spacer portion 200, and a defining portion 300 which are integrally formed.

The connecting portion 100 is provided at the middle thereof with a communication hole 110. In order to keep the connection portion 100 stable and prevent it from rotating, the connection portion 100 is provided in a rectangular parallelepiped. The communication hole 110 is a circular hole, and its axis is parallel to the longitudinal direction of the connection portion 100. The length of the connection part 100 is set according to the thickness of the lithium battery. The length of the connecting portion should be less than or equal to the thickness of the battery. After the batteries 920 are sequentially arranged, the spacing part of the device is clamped between every two batteries, the batteries are used for supplying power to the moving rail car, so that the stability of the batteries is further ensured, after the device is clamped between the two batteries, all the communication holes 110 of the connecting parts 100 of the device are communicated, and after the length of the connecting parts 100 is set according to the thicknesses of the batteries and the thickness of the spacing part 200, the two connecting parts 100 can be tightly connected. The grouped cells are then fixed by a long screw passing through the communication holes 110 of all the connection parts 100.

The connecting part is used for realizing series connection of a plurality of spacing devices and can also realize the hoop of the battery. The battery is limited in the space formed by the connecting parts at the four corners.

The limiting portion 300 is used to ensure the neatness and order of the battery grouping and assembling spacer, and the limiting portion 300 is in the shape of a long strip and is disposed at the lower portion of the connecting portion 100 and perpendicular to the lower portion of the connecting portion 100. The plane of the limiting part 300 is overlapped with the axial line of the communication hole 110 and one surface of the limiting part 300 is perpendicular to the spacing part, so that the spacing part can be completely inserted into the gap between the two batteries, namely, after the spacing part 200 is inserted, the limiting part 300 is tightly attached to the outer side surface of the battery. As shown in fig. 7, all of the battery unitizing spacers are neatly inserted. Tidy and stable, and has beautiful and beautiful effects.

The spacer 200 is also in the form of a long sheet. The spacing part 200 is disposed at the lower portion of the connection part 100 and perpendicular to the defining part 300 to space two adjacent batteries. Due to the fact that deformation can be generated under the action of expansion with heat and contraction with cold in the using process of the batteries and the charging and discharging process, the elastic pad or the elastic ring 400 is arranged on the spacing part 200 because excessive extrusion between the two batteries and the spacing plate 200 is prevented.

The resilient pad or ring 400 may be attached to the spacer plate. Or a groove is arranged on the partition plate, and the elastic ring or the elastic cushion is fixed in the groove. Preferably, the spacing portion 200 is provided with a spacing hole 210 to facilitate the installation of the elastic ring or the elastic pad. As shown in fig. 3, an elastic ring 400 or an elastic pad is clamped inside the spacing hole 210, and the thickness of the elastic ring 400 or the elastic pad is greater than that of the spacing portion. The periphery of elastic ring 400 or elastic pad is equipped with the recess, and its joint neither can take place to drop because of the time too for a long time and have the activity space simultaneously in the interval hole, can realize the buffering at the vibration.

In order to increase the heat dissipation effect, the width of the spacing part 200 is smaller than that of the battery, and the length of the spacing part is smaller than that of the battery, so that the other parts of the two batteries except for the spacing part clamped at the corner are cavities, and ventilation and heat dissipation are facilitated. At this time, the interval portion may be too narrow to provide the elastic ring 400 or the elastic pad. Thus, as shown in fig. 2, the edge of the spacer 200 is provided with at least two planar protrusions. The elastic ring 400 or the elastic pad is disposed on the plane protrusion.

Or, the spacing hole 210 is arranged at the plane protrusion 220, and the elastic ring 400 or the elastic pad is clamped inside the spacing hole 210. The thickness of the elastic ring 400 is greater than that of the spacer.

In order to increase the heat dissipation effect and stability, the battery grouping and assembling spacer further includes reinforcing ribs 500 integrally formed with the connection parts 100, the spacing parts 200, and the limiting parts 300. The reinforcing rib 500 and the spacing part 200 are located at both sides of the defining part 300. The reinforcing ribs 500 are provided with heat dissipation holes.

Preferably, in order to ensure the alignment of the end portions, as shown in fig. 4, an end surface of one of the apertures of the communication hole 110 of the connection portion 100 is flush with one side of the spacer 200. This kind of battery is assembled spacer in groups and is used for placing at the tip for interval battery and tip mount, so that the installation of mount 600.

The end fixing frame comprises a vertical rod 610 and at least two horizontal rods 620, wherein the vertical rod 610 and the horizontal rods are arranged in parallel, and the fixing holes 630 are formed in the vertical rod 610. The total horizontal pole of this embodiment is equipped with two, and two horizontal poles are located between the vertical pole and are perpendicular with the vertical pole. The horizontal rod 620 at the lowest end is higher than the bottom ends of the vertical rods 610, and the lower ends of the horizontal rod 620 at the lowest end and the two vertical rods 610 enclose a placing clamping groove 650.

The assembled battery packs also need to be placed side by side after the batteries are assembled, and the vertical rods are closely adjacent to each other in order to save area, so that a sealed space is generated, and heat dissipation is not facilitated. In order to facilitate ventilation, ventilation grooves which are uniformly distributed in the vertical direction are formed in the outer side of the vertical rod. The length direction of the air-permeable groove 660 is a horizontal direction. After two vertical poles are arranged side by side, a through hole is formed by the ventilating grooves, so that air circulation is facilitated, and a better radiating effect can be achieved.

Because the upper portion of the battery is provided with the connecting terminal and the connecting wire, an insulating plate is arranged on the upper portion of the battery for preventing electric shock, and in order to realize the fixation of the insulating plate, the mounting hole 621 of the upper horizontal rod is a screw hole. The height of the upper horizontal rod is higher than that of the battery.

In order to realize fixation, the number of the end fixing frames is two, the two end fixing frames are arranged oppositely, and the axial leads of the four fixing holes of one end fixing frame are respectively superposed with the axial lead of the other end fixing frame. The connection part of the spacers is inserted into the tandem screw 930, that is, the tandem screw is inserted into the communication hole 110 of the connection part, and the number of the spacers is set according to the number of the batteries in the battery pack. The number of the spacing devices on each tandem screw is the same. Both ends of the tandem screw are provided with threads, and the middle part of the tandem screw is cylindrical. Both ends of the tandem screw 930, to which the spacer is connected in series, are inserted into fixing holes of the end fixing frame and fixed at the outside by bolts. As shown in the figure, a spacer is clamped at four corners between every two rectangular lithium batteries, and the batteries are separated by the spacer so as to prevent the batteries 920 from being too close to each other. Four angles set up spacer simultaneously, reach the purpose of evenly separating the battery.

Preferably, the horizontal bar 620 at the lower portion is slightly higher than the bottom end of the vertical bar 610 in order to achieve a better stability between the battery pack and the platform. The lowest horizontal rod 620 and the lower ends of the two vertical rods 610 enclose a holding slot 650. After the batteries are assembled, the batteries need to be placed on the placing plate 900, so that the placing plate 900 is provided with a bump, and the placing clamping groove is clamped on the bump 910, so that the purpose of stability is achieved. For fixing, the protrusion 910 is provided with a fixing screw hole corresponding to the mounting hole, and the fixing screw hole is connected to the mounting hole 640 through a screw.

In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and various changes and modifications can be made by workers in the field without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and all the equivalent changes and modifications of the shape, structure, characteristics and spirit according to the scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides an easy battery unit who dispels heat and assemble which characterized in that:

the method comprises the following steps:

the end fixing frames are arranged at two ends of a group of batteries arranged side by side, the end fixing frames are provided with fixing holes (630), and the four fixing holes (630) are arranged and form a rectangle in a surrounding manner;

the spacing devices are respectively arranged at four corners of the battery and used for separating two batteries and separating the batteries from the end fixing frame, the spacing devices are provided with communication holes (110), and the communication holes (110) of the spacing devices positioned at the four corners of the batteries are respectively superposed with the axial leads of the four fixing holes (630);

and the tandem screw (930) is inserted into the fixing hole (630) and the communicating hole (110) on the same axis, and two ends of the tandem screw are fixed by bolts.

2. The battery unit easy to dissipate heat and assemble according to claim 1, wherein:

the spacing device comprises a connecting part (100), a spacing part (200) and a limiting part (300) which are integrally formed;

a communication hole (110) is formed in the middle of the connecting part (100);

the limiting part (300) is in a long strip shape and is arranged at the lower part of the connecting part (100), the plane of the limiting part (300) is superposed with the axial lead of the communicating hole (110),

the spacing part (200) is in the shape of a long strip sheet, is arranged at the lower part of the connecting part (100) and is vertical to the limiting part (300) and is used for spacing two adjacent batteries,

the spacing part (200) is provided with an elastic ring (400) or an elastic pad;

the connecting part (100) is a cube, and the communication hole (110) is a circular hole.

3. The battery unit easy to dissipate heat and assemble according to claim 1, wherein:

the end fixing frame comprises vertical rods (610) arranged in parallel and at least two horizontal rods (620) connected with the two vertical rods;

the upper portion and the lower portion of the vertical rod (610) are provided with fixing holes (630), the horizontal rod (620) at the lowest end is higher than the bottom end of the vertical rod (610), and the lower ends of the horizontal rod (620) at the lowest end and the two vertical rods (610) are enclosed to form a placing clamping groove (650).

4. The battery unit easy to dissipate heat and assemble according to claim 2, wherein:

be equipped with interval hole (210) on interval portion (200), interval hole (210) inside card is equipped with elastic ring (400) or elastic pad, the thickness of elastic ring (400) or elastic pad is greater than the thickness of interval portion.

5. The battery unit easy to dissipate heat and assemble according to claim 2, wherein:

the edge of the spacing part (200) is provided with at least two plane bulges, and the elastic ring (400) or the elastic pad is arranged on the plane bulges.

6. The battery unit easy to dissipate heat and assemble according to claim 4, wherein:

the edge of the spacing part (200) is provided with at least two plane protrusions, the spacing hole (210) is formed in the plane protrusions (220), an elastic ring (400) or an elastic pad is clamped inside the spacing hole (210), and the thickness of the elastic ring (400) is larger than that of the spacing part.

7. A battery unit easy to dissipate heat and assemble according to any one of claims 1 to 6, wherein:

the heat dissipation structure is characterized by further comprising a reinforcing rib (500) integrally formed with the connecting portion (100), the spacing portion (200) and the limiting portion (300), wherein the reinforcing rib (500) and the spacing portion (200) are located on two sides of the limiting portion (300), and heat dissipation holes are formed in the reinforcing rib (500).

8. The battery unit easy to dissipate heat and assemble according to claim 7, wherein:

the end face of one orifice of the communication hole (110) of the connecting part (100) is flush with one side of the spacing part (200).

9. A battery unit easy to dissipate heat and assemble according to claim 3, wherein:

the outer side of the vertical rod (610) is provided with ventilation grooves (660) which are uniformly distributed in the vertical direction, and the length direction of the ventilation grooves (660) is the horizontal direction.

10. A battery unit easy to dissipate heat and assemble according to claim 3, wherein:

the horizontal rod (620) is provided with a mounting hole (640).

11. The battery unit easy to dissipate heat and assemble as claimed in claim 10, wherein:

the mounting hole (640) of the horizontal rod (620) positioned at the upper part is a screw hole.