Electrolyte injection nozzle and injection device

Abstract

The utility model relates to an electrolyte injection nozzle and an injection device, comprising: a main body and an injection channel longitudinally penetrating the main body, the main body comprising: an extension portion, the extension portion being arranged at the upper end of the main body, and a plurality of continuous pressure relief channels being arranged on the upper surface of the main body and the outer side surface of the extension portion. The electrolyte injection nozzle of the utility model has the following beneficial effects: continuous pressure relief channels are designed on the upper surface of the injection nozzle main body and the outer side surface of the extension portion, which greatly reduces the splashing of electrolyte outside the product, prevents the product from being corroded by the splashed electrolyte, and improves the product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and more specifically to an electrolyte injection nozzle and an injection device. Background Art

[0002] The electrolyte of lithium batteries is corrosive. When adding electrolyte into the battery cell, the filling hole and the filling nozzle of the battery shell are not aligned accurately. Under the action of pressure, the electrolyte will spray and splash out, causing corrosion on the product appearance and affecting product quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is to propose an electrolyte injection nozzle and an injection device in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is: to propose an electrolyte injection nozzle, including: a main body and an injection channel longitudinally penetrating the main body, the main body includes: an extension part, the extension part is arranged at the upper end of the main body, and the upper surface of the main body and the outer side surface of the extension part are provided with a plurality of continuous pressure relief channels.

[0005] In some embodiments, the main body is a cylindrical structure, and the injection channel includes: a first channel and a second channel, and the radius of the second channel is smaller than the radius of the first channel.

[0006] In some embodiments, the length of the extension is less than the overall height of the body.

[0007] In some embodiments, the pressure relief channel includes: a first pressure relief channel and a second pressure relief channel, the first pressure relief channel is longitudinally distributed on the outer side surface of the extension portion, and the second pressure relief channel is transversely distributed on the upper surface of the main body.

[0008] In some embodiments, the first pressure relief channel of the extension portion and the second pressure relief channel of the main body are perpendicular to each other.

[0009] In some embodiments, the body is made of a non-metallic material.

[0010] In some embodiments, the body is integrally formed.

[0011] The utility model also provides a liquid injection device, comprising the electrolyte liquid injection nozzle as described above.

[0012] The implementation of the electrolyte injection nozzle of the utility model has the following beneficial effects: a continuous pressure relief channel is designed on the outer surface of the injection nozzle body and the injection nozzle extension, which greatly reduces the splashing of electrolyte outside the product, protects the product from being corroded by the splashed electrolyte, reduces the contamination of the electrolyte injection hole, and improves the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the electrolyte injection nozzle of the prior art of the utility model;

[0014] Figure 2 yes Figure 1 AA section view;

[0015] Figure 3 It is a top view of the electrolyte injection nozzle of the utility model;

[0016] Figure 4 It is a left side view of the electrolyte injection nozzle of the utility model;

[0017] Figure 5 yes Figure 4 BB cross-sectional view;

[0018] Figure 6 It is a stereoscopic diagram of the electrolyte injection nozzle of the utility model.

[0019] Description of reference numerals:

[0020] The main body 100 , the extension portion 110 , the injection channel 101 , the first channel 1011 , the second channel 1012 , the pressure relief channel 102 , the first pressure relief channel 1021 , and the second pressure relief channel 1022 . DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 2 The electrolyte injection nozzle of the prior art is shown. Figure 3-Figure 6The electrolyte injection nozzle of the utility model is shown, comprising: a main body 100 and an injection channel 101, wherein the injection channel 101 penetrates the main body 100 longitudinally, and the injection channel 101 is the same as the central axis of the main body 100. The main body comprises: an extension portion 110, the extension portion 110 is arranged at the upper end of the main body 100, the main body 100 is a cylindrical structure, and the inner diameter of the main body 100 is larger than the inner diameter of the extension portion 110, and the outer diameter of the extension portion 110 is smaller than the outer diameter of the main body 100. A plurality of pressure relief channels 102 are arranged on the outer side surface of the extension portion 110 and the upper surface of the main body 100, and the pressure relief channels 102 include: a first pressure relief channel 1021 and a second pressure relief channel 1022. The first pressure relief channel 1021 longitudinally distributed on the outer side surface of the extension portion 110 and the second pressure relief channel 1022 transversely distributed on the upper surface of the main body 100 are perpendicular to each other.

[0023] Furthermore, in some embodiments, the injection channel 101 includes: a first channel 1011 and a second channel 1012, the first channel 1011 is disposed in the main body 100, the second channel 1012 is disposed in the main body 100 and partially disposed in the extension 110, the radius of the second channel 1012 is smaller than the radius of the first channel 1011, and this design increases the pressure of the electrolyte in the second channel 1012, and the electrolyte is more likely to leave the injection nozzle.

[0024] Furthermore, in some embodiments, the length of the extension portion 110 is less than the overall height of the main body 100, so that the extension portion 110 can be easily inserted into the battery filling hole structure, making the filling process faster and smoother.

[0025] Furthermore, in some embodiments, a plurality of pressure relief channels 102 are provided on the outer side of the extension portion 110 and the upper surface of the main body 100, and a first pressure relief channel 1021 longitudinally distributed on the outer side of the extension portion 110 and a second pressure relief channel 1022 transversely distributed on the upper surface of the main body are perpendicular to each other. When the injection hole and the injection nozzle are not aligned accurately, the electrolyte can be released from the first pressure relief channel 1021 and the second pressure relief channel 1022.

[0026] Furthermore, in some embodiments, the first pressure relief channel 1021 longitudinally distributed on the outer side wall of the extension portion 110 and the second pressure relief channel 1022 transversely distributed on the upper surface of the main body 100 are perpendicular to each other. When the injection nozzle of the pressure relief channel 102 is inserted into the battery injection hole structure, the internal and external air pressures can be balanced during injection, so that the electrolyte can smoothly enter the injection hole structure.

[0027] It can be understood that the diameter and number of the pressure relief channels 102 can be adjusted according to actual needs.

[0028] Furthermore, in some embodiments, since the electrolyte is corrosive, the material of the main body 100 is non-metallic material, and can be made of corrosion-resistant rubber materials such as EPDM, fluororubber, and silicone rubber, so as to avoid frequent replacement of the injection nozzle due to material corrosion, which increases the cost of the injection nozzle.

[0029] The utility model also provides a liquid injection device, comprising the electrolyte liquid injection nozzle disclosed in the embodiment of the utility model.

[0030] The implementation of the electrolyte injection nozzle of the utility model has the following beneficial effects: a continuous pressure relief channel 102 is designed on the outer side surface of the injection nozzle extension 110 and the upper surface of the main body 100, which greatly reduces the splashing of electrolyte outside the product, protects the product from being corroded by the splashed electrolyte, and improves the product quality.

[0031] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot limit the protection scope of the utility model. All equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

[0032] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. An electrolyte injection nozzle, comprising: The main body and the injection channel longitudinally passing through the main body are characterized in that the main body includes: an extension part, the extension part is arranged at the upper end of the main body, and the upper surface of the main body and the outer side surface of the extension part are provided with a plurality of continuous pressure relief channels.

2. The electrolyte injection nozzle according to claim 1, characterized in that: The main body is a cylindrical structure, and the injection channel includes: a first channel and a second channel, and the radius of the second channel is smaller than the radius of the first channel.

3. The electrolyte injection nozzle according to claim 2, characterized in that: The length of the extension portion is smaller than the overall height of the main body.

4. The electrolyte injection nozzle according to claim 3, characterized in that: The pressure relief channel comprises: a first pressure relief channel and a second pressure relief channel, wherein the first pressure relief channel is longitudinally distributed on the outer side surface of the extension portion, and the second pressure relief channel is transversely distributed on the upper surface of the main body.

5. The electrolyte injection nozzle according to claim 4, characterized in that: The first pressure relief channel of the extended portion and the second pressure relief channel of the main body are perpendicular to each other.

6. The electrolyte injection nozzle according to claim 1, characterized in that: The main body is made of non-metallic material.

7. The electrolyte injection nozzle according to claim 1, characterized in that: The main body is integrally formed.

8. A liquid injection device, characterized in that: include: The electrolyte injection nozzle according to any one of claims 1 to 7.

Images