Battery positioning assembly and battery pack

Abstract

The utility model discloses a battery positioning assembly and a battery pack, and relates to the technical field of batteries, the battery positioning assembly comprises a positioning mechanism and a pull rope, the positioning mechanism comprises a positioning piece and a sliding piece, and the positioning piece is provided with a positioning clamping groove used for clamping a plurality of batteries along the length extension direction of the positioning piece; a sliding groove is formed in the outer side, back on to the positioning clamping groove, of the positioning piece in the length extending direction of the positioning piece, and the sliding piece is slidably connected to the sliding groove, can be fixed to the current position of the sliding groove during locking and can slide in a reciprocating mode along the sliding groove during unlocking. One end of the pull rope is connected with the sliding piece, the other end of the pull rope is used for being connected with a sliding piece of another positioning mechanism, and the pull rope can be in a tensioned state when the sliding piece slides. Compared with the prior art, the battery positioning assembly disclosed by the utility model can be used for positioning various batteries with different sizes, and is strong in compatibility.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a battery positioning component and a battery pack. Background Art

[0002] Batteries are very common products in daily life. They are mainly used to connect the two poles of electrical equipment to provide power for the equipment so that the equipment can continue to work, such as providing a power source for new energy electric vehicles. In order to improve the endurance of electrical equipment, multiple single batteries are usually packaged together to form a battery pack, and all batteries in the battery pack are connected in series to form a large-capacity battery, thereby increasing the endurance of electrical equipment.

[0003] The prior art with announcement number CN208608279U discloses a battery pack fixing structure, including a box body with an opening at the top, in which the battery pack is placed, and the battery pack fixing structure also includes at least one pair of insulating fixing plates, and a plurality of partition strips are arranged at intervals on one side of the insulating fixing plates, and the partition strips are used to separate and position the batteries in the battery pack; the at least one pair of insulating fixing plates can separate and position the batteries in the battery pack from the bottom and top of the battery pack, respectively, so as to fix the battery pack in the box body. The utility model also discloses a battery pack including the battery pack fixing structure. The battery pack fixing structure of the utility model is convenient and reliable to fix, and is conducive to heat dissipation.

[0004] However, the prior art still has defects. For example, the insulating fixing plate is planar and cannot be used to position the corners of multiple batteries. Moreover, the size of the insulating fixing plate is fixed and can only be used to position batteries of a specific size, resulting in poor compatibility. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and to propose a battery positioning assembly and a battery pack to solve the technical problems in the prior art that the insulating fixing plate of the battery pack fixing structure is planar and cannot position the corners of multiple batteries, and the size of the insulating fixing plate is fixed and can only position batteries of a specific size, resulting in poor compatibility.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, the utility model provides a battery positioning assembly, comprising:

[0008] A positioning mechanism, comprising a positioning member and a sliding member, wherein the positioning member is formed with a positioning slot for clamping a plurality of batteries along its length extension direction, and the positioning member is provided with a sliding slot along its length extension direction on the outer side facing away from the positioning slot, and the sliding member is slidably connected to the sliding slot and can be locked to the sliding slot and unlocked relative to the sliding slot when sliding; and

[0009] A pull rope, one end of which is connected to the sliding member, and the other end of which is used to connect to another sliding member of the positioning mechanism, and the pull rope can be in a tensioned state when the sliding member slides.

[0010] In some embodiments, the positioning member includes a first positioning strip and a second positioning strip, the long side of the first positioning strip is connected to the long side of the second positioning strip, and the first positioning strip and the second positioning strip are arranged at an angle to form the positioning slot.

[0011] In some embodiments, the positioning member further includes a torsion spring, and the first positioning bar is rotatably connected to the second positioning bar via the torsion spring, and the first positioning bar and the second positioning bar can adjust the size of the positioning slot when they rotate relative to each other.

[0012] In some embodiments, the first positioning strip and the second positioning strip are both provided with the sliding groove along their respective length extension directions, the two sliding grooves are both slidably connected with the sliding members, and the two sliding members can be connected to the sliding member of another positioning mechanism through the pull rope.

[0013] In some embodiments, the sliding member includes a slider, a screw and a nut. The slider is slidably engaged in the slide groove, one end of the screw is connected to the nut, and the other end of the screw is threadedly connected to the slider. When the screw rotates, it can drive the nut to press against the positioning member to lock the sliding member.

[0014] In some embodiments, the diameter of the screw is smaller than the diameter of the nut, the screw is connected to the pull rope, and can drive the pull rope to be in a tensioned state when the slider slides.

[0015] In some embodiments, the drawstring is a rubber band.

[0016] In some embodiments, the positioning member includes a plurality of plug-in blocks, each of the plug-in blocks is provided with the positioning slot and a portion of the slide slot, and the plurality of plug-in blocks can be detachably plugged in at the head and tail ends.

[0017] In the second aspect, the utility model also provides a battery pack, comprising a plurality of batteries and a plurality of the above-mentioned battery positioning assemblies, wherein the plurality of batteries are stacked end to end and connected, and the positioning members of the plurality of battery positioning assemblies are clamped on the circumference of the plurality of batteries through positioning slots, and the number of the pull ropes is multiple, and two adjacent sliding members are connected by the pull ropes.

[0018] In some embodiments, the battery pack further includes two end plates, which are located on both sides of the plurality of batteries and respectively connected to two ends of each of the positioning members.

[0019] Compared with the prior art, the battery positioning assembly provided by the utility model has a positioning slot of a positioning member that can be simultaneously engaged with one of the corners of multiple batteries, so four positioning members can be prepared, and the positioning slots of the four positioning members are respectively engaged with the four corners of multiple batteries, and then a pull rope is used to connect two adjacent sliding members, and the pull rope is put in a tensioned state by driving the sliding member to slide, thereby locking the sliding member. Since the four positioning members are surrounded in a circle and are all tightened by the pull rope, the four positioning members can position multiple batteries. For batteries of different sizes, the distance between two adjacent positioning members can be changed, and then the pull rope can be driven again in a tensioned state by sliding the sliding member, so that the battery can be positioned. Compared with the prior art, the battery positioning assembly of the utility model can position batteries of various sizes, and has strong compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a battery positioning assembly according to an embodiment of the utility model;

[0021] Figure 2 is a structural schematic diagram of a positioning member according to another embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of a battery pack according to an embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of a battery pack described in another embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In order to solve the technical problems in the prior art that the insulating fixing plate of the battery pack fixing structure is flat and cannot position the corners of multiple batteries, and the size of the insulating fixing plate is fixed and can only position batteries of a specific size, and has poor compatibility, the utility model provides a battery positioning assembly that can position batteries of different sizes and has strong compatibility.

[0026] It should be noted that the battery positioning assembly described in the present invention is used for but not limited to battery packs, etc. For the convenience of explanation, in the present invention, only the battery positioning assembly applied to a battery pack is used as an example for explanation. The principle of applying the battery positioning assembly to other types of equipment is essentially the same as that applied to a battery pack, and will not be described in detail here.

[0027] See also Figure 1 , Figure 1 The schematic diagram of the structure of the battery positioning assembly 100 in one embodiment of the utility model comprises a positioning mechanism 1 and a pull rope 2. The positioning mechanism 1 comprises a positioning member 11 and a sliding member 12. The positioning member 11 is formed with a positioning slot 111 for clamping a plurality of batteries along its length extension direction. The positioning member 11 is provided with a slide slot 112 along its length extension direction on the outer side facing away from the positioning slot 111. The slide slot 112 is slidably connected to the slide slot 112. The slide slot 12 can be fixed at the current position of the slide slot 112 when locked, and can slide back and forth along the slide slot 112 when unlocked.

[0028] One end of the pull rope 2 is connected to the sliding member 12, and the other end of the pull rope 2 is used to connect the sliding member 12 of another positioning mechanism 1. When the sliding member 12 is sliding, it can drive the pull rope 2 to move, and the sliding members 12 of the two positioning mechanisms 1 will also move relative to each other, and the distance between the two sliding members 12 will change. For example, when the distance between the two sliding members 12 gradually increases, the pull rope 2 can finally be in a tensioned state, so that the two positioning members 11 can be close to the multiple batteries through their respective positioning slots 111, so as to facilitate the positioning of the multiple batteries. The length of the pull rope 2 can be set to be greater than the shortest distance between the two sliding members 12. The two ends of the pull rope 2 are connected to the two sliding members 12, so when the relative distance between the two sliding members 12 changes, the pull rope 2 can be driven to be in a tensioned state again by sliding the two sliding members 12. Therefore, to position multiple batteries of different sizes, the two positioning members 11 are clamped to the corners of the battery through the positioning slots 111, and the two sliding members 12 can be slid to tighten the pull rope 2 again, so that the positioning member 11 can stably position the multiple batteries.

[0029] In one embodiment, see Figure 1The positioning member 11 includes a first positioning bar 113 and a second positioning bar 114. The long side of the first positioning bar 113 and the long side of the second positioning bar 114 are connected. The first positioning bar 113 and the second positioning bar 114 are arranged at an angle to form the above-mentioned positioning slot 111. Figure 1 In the illustrated embodiment, the first positioning strip 113 and the second positioning strip 114 are perpendicular to each other, and the positioning slot 111 formed is a right-angle slot. Since the corners of the battery are usually right-angled, the right-angled positioning slot 111 can just fit the right-angled side of the battery, and the positioning member 11 can fully fit the battery without any gaps, so that multiple batteries can be stably positioned. In other embodiments, for batteries with irregular corners, such as a battery with an acute corner, the angle of the positioning slot 111 can also be set to an acute angle to fit the corner of the battery.

[0030] In one embodiment, see Figure 1 , the positioning member 11 also includes a torsion spring (not shown in the figure), the first positioning bar 113 is rotatably connected to the second positioning bar 114 through the torsion spring, and the first positioning bar 113 and the second positioning bar 114 can adjust the size of the positioning slot 111 when they rotate relative to each other. In this embodiment, when the first positioning bar 113 and the second positioning bar 114 are subjected to external force and rotate relative to each other to expand the angle of the positioning slot 111, the torsion spring can accumulate elastic force. When the first positioning bar 113 and the second positioning bar 114 are not subjected to external force, the torsion spring can release elastic force to drive the first positioning bar 113 and the second positioning bar 114 to rotate and reset, thereby reducing the angle of the positioning slot 111. Therefore, this embodiment can adapt to the positioning of batteries with various corner angles and has strong compatibility.

[0031] In one embodiment, see Figure 1 The first positioning bar 113 and the second positioning bar 114 are both provided with the above-mentioned slide grooves 112 along their respective length extension directions, and the two slide grooves 112 are both slidably connected with the sliding member 12, and the two sliding members 12 can be connected to the sliding member 12 of another positioning mechanism through different pull ropes 2, so as to tighten the positioning member 11 from two directions. In other embodiments, the above-mentioned slide grooves 112 can also be provided only in the first positioning bar 113 or the second positioning bar 114. In this embodiment, there is only one slide groove 112 and one sliding member 12, and one end of the two pull ropes 2 can be tied to one sliding member 12 at the same time, and the other ends of the two pull ropes 2 are respectively connected to the sliding member 12 of another positioning mechanism 1, so that the positioning member 11 can also be tightened.

[0032] In one embodiment, see Figure 1The sliding member 12 includes a slider 121, a screw 122 and a nut 123. The slider 121 is slidably engaged with the slide groove 112. One end of the screw 122 is connected to the nut 123. The other end of the screw 122 is threadedly connected to the slider 121. When the screw 122 rotates, it can drive the nut 123 to press against the positioning member 11 to lock the sliding member 12. In this embodiment, the slider 121 is in a square shape. The slider 121 is engaged with the slide groove 112 and cannot rotate. Therefore, when the nut 123 is rotated, the nut 123 can drive the screw 122 to rotate relative to the slider 121, so that the nut 123 moves close to or away from the positioning member 11 in the same manner as the thread. When the nut 123 moves close to the positioning member 11, it can damp and press against the positioning member 11 to complete the locking of the sliding member 12. When the nut 123 reverses and disengages from the positioning member 11, the sliding member 12 can be unlocked, and the sliding member 12 can slide back and forth again.

[0033] Furthermore, the diameter of the screw 122 is smaller than the diameter of the nut 123. The screw 122 is connected to the pull cord 2 and can drive the pull cord 2 to be in a tensioned state when the slider 121 slides. In this embodiment, the pull cord 2 can be tied to the screw 122 to complete the connection between the pull cord 2 and the sliding member 12. In other embodiments, the pull cord 2 can also be a rubber band, which can be directly bolted to the screw 122 without being tied, so that the disassembly and assembly efficiency of the pull cord 2 can be improved and the disassembly and assembly are convenient. In addition, the rubber band can provide a certain pre-tightening force, and the sliding member 12 has a larger range of movement, which can position batteries of larger sizes.

[0034] In one embodiment, see Figure 2 The positioning member 11 includes a plurality of plug-in blocks 115, each of which is provided with a portion of a positioning slot 111 and a slide slot 112. The plurality of plug-in blocks 115 can be detachably plugged in head and tail to form the above-mentioned positioning slot 111 and slide slot 112. When the number of plug-in blocks 115 is different, the lengths of the positioning slot 111 and slide slot 112 formed by the plurality of plug-in blocks 115 are also different. Therefore, the number of plug-in blocks 115 can be adaptively set according to the number of batteries, so that the positioning slot 111 formed by the plurality of plug-in blocks 115 can accommodate a plurality of batteries.

[0035] Second, see Figure 3 The utility model also provides a battery pack 101, including multiple batteries 3 and multiple battery positioning assemblies 100 as described above, the multiple batteries 3 are stacked end to end, the positioning members 11 of the multiple battery positioning assemblies 100 are clamped on the peripheral sides of the multiple batteries 3 through positioning slots 111, the number of pull ropes 2 is multiple, and two adjacent sliding members 12 are connected by the pull ropes 2. Figure 3There are four battery positioning assemblies 100 in the illustrated embodiment, and the number of the pull ropes 2 is four. The four positioning members 11 of the four battery positioning assemblies 100 are respectively arranged at the four corners of the multiple batteries 3. Specifically, the four positioning members 11 are clamped at the corners of the multiple batteries 3 through their respective positioning slots 111 to fully position the multiple batteries 3. The two ends of each pull rope 2 are respectively connected to the sliding members 12 of two adjacent battery positioning assemblies 100. The four pull ropes 2 make a circle around the city and interact with each other to fix the multiple batteries 3. Finally, one or more of the sliding members 12 are controlled to slide to tighten the corresponding pull ropes 2, so that the four pull ropes 2 are all in a tightened state, thereby fully fixing the multiple batteries 3.

[0036] In one embodiment, see Figure 4 The battery pack 101 further includes two end plates 4, which are located on both sides of the plurality of batteries 3 and respectively connected to both ends of each positioning member 11. The end plates 4 are mainly used to limit the position of the batteries 3 and assist in positioning the batteries 3.

[0037] In order to better understand the present invention, the following Figures 1 to 4 The technical solution of the utility model is described in detail:

[0038] In the process of positioning multiple batteries 3, the sliding members 12 of two adjacent battery positioning components 100 can be slid to the shortest distance first, and multiple battery positioning components 100 are respectively clamped to the corners of multiple batteries 3 through the positioning slots 111 for pre-positioning, and then the sliding members 12 are moved accordingly until the pull rope 2 is in a tightened state. When positioning batteries 3 of different sizes, it is only necessary to clamp the corners of multiple batteries 3 with the positioning members 11, and then readjust the position of the sliding members 12 to re-tighten the pull rope 2, which is easy to operate and has strong compatibility.

[0039] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A battery positioning assembly, characterized in that: include: A positioning mechanism, comprising a positioning member and a sliding member, wherein the positioning member is formed with a positioning slot for clamping a plurality of batteries along its length extension direction, and the positioning member is provided with a sliding slot along its length extension direction on the outer side facing away from the positioning slot, and the sliding member is slidably connected to the sliding slot and can be locked to the sliding slot and unlocked relative to the sliding slot when sliding; and A pull rope, one end of which is connected to the sliding member, and the other end of which is used to connect to another sliding member of the positioning mechanism, and the pull rope can be in a tensioned state when the sliding member slides.

2. The battery positioning assembly according to claim 1, characterized in that: The positioning member includes a first positioning strip and a second positioning strip, the long side of the first positioning strip is connected to the long side of the second positioning strip, and the first positioning strip and the second positioning strip are arranged at an angle to form the positioning slot.

3. The battery positioning assembly according to claim 2, characterized in that: The positioning member further includes a torsion spring, and the first positioning bar is rotatably connected to the second positioning bar via the torsion spring. The first positioning bar and the second positioning bar can adjust the size of the positioning slot when they rotate relative to each other.

4. The battery positioning assembly according to claim 2, characterized in that: The first positioning strip and the second positioning strip are both provided with the sliding grooves along their respective length extension directions, and the two sliding grooves are both slidably connected with the sliding members, and the two sliding members can be connected to the sliding member of another positioning mechanism through the pull rope.

5. The battery positioning assembly according to claim 1, characterized in that: The sliding member includes a slider, a screw rod and a nut. The slider is slidably engaged in the slide groove, one end of the screw rod is connected to the nut, and the other end of the screw rod is threadedly connected to the slider. When the screw rod rotates, it can drive the nut to press against the positioning member to lock the sliding member.

6. The battery positioning assembly according to claim 5, characterized in that: The diameter of the screw is smaller than the diameter of the nut. The screw is connected to the pull rope and can drive the pull rope to be in a tensioned state when the slider slides.

7. The battery positioning assembly according to claim 1, characterized in that: The drawstring is a rubber band.

8. The battery positioning assembly according to claim 1, characterized in that: The positioning member comprises a plurality of plug-in blocks, each of which is provided with the positioning slot and a part of the slide slot, and the plurality of plug-in blocks can be detachably plugged in head and tail.

9. A battery pack, characterized in that: It comprises a plurality of batteries and a plurality of battery positioning assemblies as described in any one of claims 1 to 8, wherein the plurality of batteries are stacked end to end and connected, and the positioning members of the plurality of battery positioning assemblies are connected to the circumference of the plurality of batteries via positioning slots, and the number of the pull ropes is plural, and two adjacent sliding members are connected via the pull ropes.

10. The battery pack according to claim 9, characterized in that: The battery pack further includes two end plates, which are located on both sides of the plurality of batteries and respectively connected to two ends of each positioning member.

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