Power connection device for series connection of lithium batteries

Abstract

The utility model discloses a power connection device for series connection of lithium batteries, and relates to the technical field of series connection of lithium batteries, the power connection device comprises a first lithium battery and a second lithium battery, the top of the first lithium battery and the top of the second lithium battery are respectively provided with two electrodes, and the two electrodes are respectively a positive electrode and a negative electrode. Fixing blocks are fixedly connected to the positions, located above the electrodes, of the tops of the first lithium battery and the second lithium battery, grooves are formed in the tops of the fixing blocks, limiting blocks are inserted into inner cavities of the grooves, notches are formed in the tops of the limiting blocks, electric wires are inserted into the notches, and connectors are fixedly connected to the bottoms of the electric wires; the connector is connected to the electrode in a sleeved mode, a sliding groove is formed in the side face of the fixing block, and a limiting mechanism capable of limiting the limiting block is arranged in an inner cavity of the sliding groove. The electrode fixing device has the advantages that the connector and the electrode can be conveniently connected and separated, and therefore the electrode fixing device can be conveniently used by workers, and the working efficiency of the workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery series connection, in particular to an electricity connection device for lithium battery series connection. Background Technique

[0002] Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth-generation product of rechargeable batteries, lithium metal batteries, was born in 1996. Its safety, specific capacity, self-discharge rate, and performance-price ratio are all superior to those of lithium-ion batteries. Due to its own high-tech requirements, only companies in a few countries produce this kind of lithium metal battery. In order to provide a higher voltage output, workers often need to connect lithium batteries in series;

[0003] At present, for the series connection of lithium batteries, wires are generally connected to the electrodes of lithium batteries by soldering or bolts. When the lithium batteries in series need to be replaced, the soldering method requires professional tools to complete the disassembly, and the bolt method requires turning multiple bolts to complete the disassembly, which is relatively troublesome and not convenient for users. Therefore, we propose an electricity connection device for lithium battery series connection. Content of the Utility Model

[0004] The purpose of the utility model is to provide an electricity connection device for lithium battery series connection.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An electricity connection device for lithium battery series connection, including a first lithium battery and a second lithium battery. Two electrodes are provided on the top of both the first lithium battery and the second lithium battery. The two electrodes are respectively a positive electrode and a negative electrode. Fixing blocks are fixedly connected above the electrodes on the tops of the first lithium battery and the second lithium battery. A groove is opened on the top of the fixing block. A limiting block is inserted into the inner cavity of the groove. A notch is opened on the top of the limiting block. A wire is inserted into the notch. A connecting head is fixedly connected to the bottom of the wire. The connecting head is sleeved on the electrode. A sliding groove is opened on the side of the fixing block. A limiting mechanism capable of limiting the limiting block is provided in the inner cavity of the sliding groove.

[0006] As a further solution of the utility model: The limiting mechanism includes a clamping rod, a limiting plate, and a spring. The clamping rod is slidably inserted into the sliding groove. The limiting plate is fixedly sleeved on the clamping rod. One end of the spring is fixedly connected to the side of the limiting plate, and the other end of the spring is fixedly connected to the other side of the fixing block.

[0007] As a further solution of the utility model: A through hole is opened on the side of the limiting block, and the clamping rod can be inserted into the through hole.

[0008] As a further solution of the present utility model: the number of springs in each group of the limiting mechanisms is two, and the two springs are respectively fixedly connected to the front side and the rear side of the same side of the limiting plate.

[0009] As a further solution of the present utility model: both ends of the wire are fixedly connected with connecting heads, and the two connecting heads are respectively connected to the positive electrode and the negative electrode on the top of the first lithium battery and the second lithium battery.

[0010] As a further solution of the present utility model: the connecting head is fixedly connected to the bottom of the limiting block, the number of the connecting heads is two, and wires are fixedly connected to the tops of the two connecting heads.

[0011] Adopting the above technical solution, compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, by pulling the latch rod laterally, the latch rod will drive the limiting plate to slide. When the limiting plate slides, it will squeeze the spring, and then insert the limiting block into the groove on the top of the fixed block. The limiting block will drive the connecting head to be sleeved on the positive electrode of the top electrode of the first lithium battery, and then sleeve the other connecting head of the same wire on the negative electrode of the top electrode of the second lithium battery. Then release the pulling of the latch rod, and the spring will drive the limiting plate to rebound. The limiting plate will drive the latch rod to slide in the reverse direction, so that the latch rod is inserted into the through hole, and further the latch rod limits and fixes the limiting block, realizing the series connection of the first lithium battery and the second lithium battery. When it is necessary to cancel the series connection of the first lithium battery and the second lithium battery, pull the latch rod to the outside of the chute, and the latch rod will slide out of the through hole, so that the latch rod cancels the limiting effect on the limiting block. Then the limiting block can be slid out of the groove, and the series connection of the first lithium battery and the second lithium battery can be cancelled, realizing the effect of being able to conveniently connect and separate the connecting head and the electrode, thus facilitating the use of the staff and improving the work efficiency of the staff.

[0013] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the schematic structural diagram of the whole in the embodiment of the present utility model;

[0015] Figure 2 is the schematic sectional view of the fixed block in the embodiment of the present utility model when viewed from above;

[0016] Figure 3 is the schematic sectional view of the first lithium battery and the second lithium battery in the embodiment of the present utility model when viewed from the front;

[0017] Figure 4 In the embodiments of the present utility model Figure 3 is a schematic enlarged structure diagram of A in the figure.

[0018] In the figure: 1, the first lithium battery; 2, the second lithium battery; 3, the fixing block; 4, the wire; 5, the groove; 6, the limiting block; 7, the through hole; 8, the sliding groove; 9, the clamping rod; 10, the limiting plate; 11, the spring; 12, the electrode; 13, the connecting head. Specific embodiments

[0019] The following further describes the specific embodiments of the present utility model in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model.

[0020] In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Please refer to the attached Figure 1 - attached Figure 4 , the power connection device for lithium battery series connection of the present utility model includes a first lithium battery 1 and a second lithium battery 2. Two electrodes 12 are provided on the top of both the first lithium battery 1 and the second lithium battery 2. The two electrodes 12 are respectively the positive electrode and the negative electrode. Fixing blocks 3 are fixedly connected above the electrodes 12 on the top of the first lithium battery 1 and the second lithium battery 2. A groove 5 is opened at the top of the fixing block 3. A limiting block 6 is inserted into the inner cavity of the groove 5. A notch is opened at the top of the limiting block 6. A wire 4 is inserted into the notch. The bottom of the wire 4 is fixedly connected with a connecting head 13. The connecting head 13 is sleeved on the electrode 12. A sliding groove 8 is opened on the side of the fixing block 3. A limiting mechanism for limiting the limiting block 6 is provided in the inner cavity of the sliding groove 8.

[0022] In an embodiment of the present utility model: The limiting mechanism includes a clamping rod 9, a limiting plate 10 and a spring 11. The clamping rod 9 is slidably inserted into the sliding groove 8. The limiting plate 10 is fixedly sleeved on the clamping rod 9. One end of the spring 11 is fixedly connected to the side of the limiting plate 10, and the other end of the spring 11 is fixedly connected to the other side of the fixing block 3. The limiting mechanism can limit and cancel the limit of the limiting block 6.

[0023] In an embodiment of the present utility model: A through hole 7 is opened on the side of the limiting block 6, and the clamping rod 9 can be inserted into the through hole 7.

[0024] In an embodiment of the present utility model: The number of springs 11 in each group of limiting mechanisms is two. The two springs 11 are respectively fixedly connected to the front side and the rear side of the same side of the limiting plate 10. The two springs 11 can make the limiting plate 10 more stable when sliding.

[0025] In an embodiment of the present utility model: Both ends of the wire 4 are fixedly connected with connection heads 13, and the two connection heads 13 are respectively connected to the positive electrode and the negative electrode on the top of the first lithium battery 1 and the second lithium battery 2.

[0026] In an embodiment of the present utility model: The connection head 13 is fixedly connected to the bottom of the limit block 6. The number of connection heads 13 is two. Both tops of the two connection heads 13 are fixedly connected with the wire 4. This can facilitate the series connection of the first lithium battery 1 and the second lithium battery 2, and one of the two connection heads 13 can be used for series connection, and the other connection head 13 can be connected to the adapter.

[0027] Working principle:

[0028] When it is necessary to connect the first lithium battery 1 and the second lithium battery 2 in series, first pull the latch 9 to the side. The latch 9 will drive the limit plate 10 to slide. When the limit plate 10 slides, it will squeeze the spring 11. Then insert the limit block 6 into the groove 5 on the top of the fixed block 3. The limit block 6 will drive the connection head 13 to be sleeved on the positive electrode of the top electrode 12 of the first lithium battery 1. Then sleeve the other connection head 13 of the same wire 4 on the negative electrode of the top electrode 12 of the second lithium battery 2. Then release the latch 9 that is pulled. The spring 11 will drive the limit plate 10 to rebound. The limit plate 10 will drive the latch 9 to slide in the reverse direction, so that the latch 9 is inserted into the through hole 7, and further the latch 9 limits and fixes the limit block 6, realizing the series connection of the first lithium battery 1 and the second lithium battery 2. When it is necessary to cancel the series connection of the first lithium battery 1 and the second lithium battery 2, pull the latch 9 to the outside of the chute 8. The latch 9 will slide out of the through hole 7, so that the latch 9 cancels the limiting effect on the limit block 6. Then the limit block 6 can be slid out of the groove 5, and the series connection of the first lithium battery 1 and the second lithium battery 2 can be cancelled. Thus, the entire working process ends.

[0029] The above front, back, left, right, up, and down are all based on the Figure 1 in the specification drawings. Taking the perspective of the person observing as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0031] It should be noted that the device structure and drawings of the present utility model mainly describe the principle of the present utility model. Based on the technical principle of this design, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. However, on the premise that those skilled in the art understand the principle of the above-mentioned utility model, the specific details of its power mechanism, power supply system, and control system can be clearly known. The control method of the application document is to automatically control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art.

[0032] The standard parts used therein can all be purchased from the market, and can also be customized according to the description in the specification and drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and for the components known to those skilled in the art, their structures and principles can all be learned by those skilled in the art through technical manuals or by conventional experimental methods.

[0033] The above has described in detail the embodiments of the present utility model in conjunction with the drawings, but the present utility model is not limited to the described embodiments.

[0034] For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A power connection device for connecting lithium batteries in series, comprising a first lithium battery (1) and a second lithium battery (2), characterized in that: The top of each of the first lithium battery (1) and the second lithium battery (2) is provided with two electrodes (12), the two electrodes (12) being a positive electrode and a negative electrode respectively; the top of each of the first lithium battery (1) and the second lithium battery (2) is fixedly connected with a fixing block (3) located above the electrodes (12); the top of each of the fixing blocks (3) is provided with a groove (5); the inner cavity of the groove (5) is plugged with a limiting block (6); the top of each of the limiting blocks (6) is provided with a notch; a wire (4) is plugged into the notch; the bottom of each of the wires (4) is fixedly connected with a connector (13); the connector (13) is sleeved on the electrode (12); the side of each of the fixing blocks (3) is provided with a slide groove (8); the inner cavity of the slide groove (8) is provided with a limiting mechanism capable of limiting the limiting block (6).

2. The power connection device for lithium batteries in series according to claim 1, characterized in that: The limiting mechanism comprises a clamping rod (9), a limiting plate (10) and a spring (11); the clamping rod (9) is slidably inserted in the sliding groove (8); the limiting plate (10) is fixedly sleeved on the clamping rod (9); one end of the spring (11) is fixedly connected to the side surface of the limiting plate (10); and the other end of the spring (11) is fixedly connected to the other side surface of the fixed block (3).

3. The power connection device for lithium batteries in series according to claim 2, characterized in that: A through hole (7) is provided on the side of the limit block (6), and the clamping rod (9) can be inserted into the through hole (7).

4. The power connection device for lithium batteries in series according to claim 2, characterized in that: The number of springs (11) in each group of the limiting mechanisms is two, and the two springs (11) are respectively fixedly connected to the front side and the rear side of the same side of the limiting plate (10).

5. The power connection device for lithium batteries in series according to claim 1, characterized in that: Both ends of the electric wire (4) are fixedly connected with connectors (13), and the two connectors (13) are respectively connected to the positive electrode and the negative electrode at the top of the first lithium battery (1) and the second lithium battery (2).

6. The power connection device for lithium batteries in series according to claim 1, characterized in that: The connector (13) is fixedly connected to the bottom of the limit block (6), there are two connectors (13), and the tops of the two connectors (13) are fixedly connected to the electric wires (4).

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