Liquid injection baffle structure of cylindrical battery and battery liquid injection device

Abstract

This disclosure provides a cylindrical battery electrolyte filling baffle structure and a battery filling device. The battery electrolyte filling baffle structure includes a connector and a shielding member, which are connected to form a blocking cavity. The side of the shielding member facing away from the blocking cavity is a vertical blocking surface, and the side of the shielding member facing the blocking cavity has an inclined surface. The initial section of the inclined surface is flush with the top of the blocking cavity, and the inclined surface gradually slopes downwards from the end closer to the connector to the end farther away from the connector. The size of the blocking cavity is larger than the size of the cap. This battery electrolyte filling baffle structure ensures smooth operation, effectively reducing cap jamming, and also reduces the probability of the cap colliding with the blocking cavity, effectively reducing the risk of cap damage.

Description

Technical Field

[0001] This disclosure relates to the field of cylindrical battery liquid injection technology, and in particular to a cylindrical battery liquid injection baffle structure and a battery liquid injection device. Background Technology

[0002] During the electrolyte filling process of cylindrical batteries, electrolyte may splash onto the cap surface due to unstable operation of the filling equipment or wear of the filling nozzle. To solve this technical problem, Chinese Patent Document No. CN219759919 U discloses a cap protection device and a cylindrical battery filling device, which effectively prevents splashing onto the cap by adding a cap baffle. However, in practical applications, the blocking cavity of the traditional cap baffle forms a blocking protrusion (as shown in Figure 6 of the aforementioned document), which makes the cap prone to jamming during operation, and in severe cases, may even damage the cap. Utility Model Content

[0003] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a cylindrical battery liquid filling baffle structure and battery liquid filling device that ensures smooth operation to effectively reduce cap jamming and reduces the probability of cap colliding with the blocking cavity to effectively reduce the risk of cap damage.

[0004] The purpose of this disclosure is achieved through the following technical solution:

[0005] A battery electrolyte filling baffle structure includes a connector and a shielding member. The connector and the shielding member are connected to form a blocking cavity. The side of the shielding member facing away from the blocking cavity is a blocking vertical surface.

[0006] The shielding member has an inclined surface on the side facing the blocking cavity. The starting section of the inclined surface is flush with the top of the blocking cavity. The inclined surface is gradually inclined downward from the end closer to the connector to the end farther away from the connector. The size of the blocking cavity is larger than the size of the cap.

[0007] In one embodiment, the tilt angle α of the tilted surface is 1°-35°.

[0008] In one embodiment, the size of the blocking cavity is equal to (1.01-1.3) times the size of the cap.

[0009] In one embodiment, the side of the shield facing the injection needle has an arc-shaped clearance portion; and / or,

[0010] The connector and the shield are integrally formed.

[0011] In one embodiment, the battery liquid injection baffle structure further includes an elastic covering layer, the shielding member is a rigid shielding member, the connecting member is a rigid connecting member, and the elastic covering layer is wrapped around the outer surface of the rigid shielding member and the rigid connecting member.

[0012] In one embodiment, the elastic covering layer includes a first elastic covering sleeve and a second elastic covering sleeve, wherein the first elastic covering sleeve is bonded to the outer surface of the rigid shielding member; and the second elastic covering sleeve is bonded to the outer surface of the rigid connecting member.

[0013] In one embodiment, the first elastic cover has a recessed first mounting cavity, and a first adhesive layer is disposed in the first mounting cavity. The rigid shield is embedded in the first mounting cavity and is bonded and fixed to the first elastic cover through the first adhesive layer.

[0014] In one embodiment, the second elastic sleeve has a recessed second mounting cavity, and a second adhesive layer is disposed in the second mounting cavity. The rigid connector is embedded in the second mounting cavity and is bonded and fixed to the second elastic sleeve by the second adhesive layer.

[0015] In one embodiment, the first elastic covering sleeve is a first silicone sleeve; and / or,

[0016] The second elastic covering sleeve is a second silicone sleeve; and / or,

[0017] The rigid shielding component is a stainless steel shielding component or a carbon steel shielding component; and / or,

[0018] The rigid connector is a stainless steel connector or a carbon steel connector.

[0019] A battery liquid injection device includes the battery liquid injection baffle structure described in any of the above embodiments.

[0020] Compared with the prior art, this disclosure has at least the following advantages:

[0021] 1) Because the side of the blocking cavity facing the cap has an inclined surface, the initial section of the inclined surface is flush with the top of the blocking cavity. The inclined surface is gradually inclined downward from the end near the connector to the end away from the connector, so that no blocking protrusion is formed on the side facing the cap. When the battery filling baffle structure is running, the cap can slide smoothly along the inclined surface of the blocking cavity, effectively reducing the phenomenon of cap jamming, thereby reducing the risk of damaging the cap.

[0022] 2) Furthermore, since the size of the blocking cavity is larger than the size of the cap, the cap will not collide with the top of the blocking cavity after being blocked, further reducing the risk of damaging the cap. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a cylindrical battery liquid injection baffle structure according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A cross-sectional view of the cylindrical battery liquid injection baffle structure shown in one direction;

[0026] Figure 3 A partial structural diagram of a battery electrolyte filling device according to an embodiment of this utility model;

[0027] Figure 4 for Figure 3 A partial structural schematic diagram of the battery electrolyte injection device from another direction;

[0028] Reference numerals: 10, battery filling device; 100, battery filling baffle structure; 110, connector; 120, shield; 121, blocking vertical surface; 122, inclined surface; 1221, starting section; 123, arc-shaped clearance part; 130, blocking cavity; 151, first elastic covering sleeve; 152, second elastic covering sleeve; 161, first adhesive layer; 162, second adhesive layer; 21, filling needle; 30, clamp support plate; 31, fixing hole; 40, cylindrical battery; 41, cap. Detailed Implementation

[0029] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0033] Please see 1 and Figure 2 One embodiment of the battery filling baffle structure 100 includes a connector 110 and a shield 120. The connector 110 and the shield 120 are connected to form a blocking cavity 130, which can effectively accommodate the cap 41 to prevent electrolyte from splashing onto the cap 41 during the filling process. The side of the shield 120 facing away from the blocking cavity 130 is a blocking vertical surface 121, which facilitates the free movement of the filling needle 21. Please refer to the accompanying documentation. Figure 3 and Figure 4 To ensure the efficiency of liquid injection; the side of the shielding member 120 facing the blocking cavity 130 is formed with an inclined surface 122, the starting section 1221 of the inclined surface 122 is flush with the top of the blocking cavity 130, and the inclined surface 122 is gradually inclined downward from the end near the connector 110 to the end away from the connector 110; the size of the blocking cavity 130 is larger than the size of the cap 41.

[0034] It is understandable that, because the side of the blocking cavity 130 facing the cap 41 has an inclined surface 122, the initial section 1221 of the inclined surface 122 is flush with the top of the blocking cavity 130. The inclined surface 122 is gradually inclined downward from the end near the connector 110 to the end away from the connector 110, so that no blocking protrusion is formed on the side facing the cap 41. When the battery filling baffle structure 100 is in operation, the cap 41 can slide smoothly along the inclined surface 122 of the blocking cavity 130, effectively reducing the phenomenon of the cap 41 getting stuck, thereby reducing the risk of damaging the cap 41. Furthermore, because the size of the blocking cavity 130 is larger than the size of the cap 41, the cap 41 will not collide with the top of the blocking cavity 130 after being blocked, further reducing the risk of damaging the cap 41.

[0035] It is understood that if the tilt angle α of the inclined surface 122 is less than 1° or more than 35°, it cannot be guaranteed that the cap 41 can slide smoothly along the inclined surface 122 of the blocking cavity 130. Therefore, in one embodiment, the tilt angle α of the inclined surface 122 is 1°-35° to ensure that the tilt fluctuation of the inclined surface 122 is more appropriate, so as to ensure that the cap 41 can slide smoothly along the inclined surface 122 of the blocking cavity 130.

[0036] In one embodiment, the size of the blocking cavity 130 is equal to (1.01-1.3) times the size of the cap 41 to ensure that the size of the blocking cavity 130 is appropriate. In this way, while ensuring that the cap 41 is not collided with the connector 110 at the top of the blocking cavity 130, it can also effectively avoid the problem of material waste or the battery filling baffle structure 100 being too bulky due to the excessive use of the shielding member 120 or connector 110 caused by the size of the blocking cavity 130 being too large.

[0037] like Figure 1 As shown, in one embodiment, the shield 120 has an arc-shaped clearance portion 123 on the side facing the injection needle 21 to reduce the probability of the shield 120 colliding with the injection needle 21, thereby extending the service life of the shield 120.

[0038] In one embodiment, the connector 110 and the shield 120 are integrally formed to ensure the strong connection between the connector 110 and the shield 120.

[0039] In one embodiment, the shield 120 and the connector 110 are threaded together to enable the shield 120 and the connector 110 to be detachable, making it convenient for the operator to replace the damaged shield 120 or connector 110.

[0040] It is understandable that if the connector 110 and the shield 120 are made of rigid materials, they are easily scratched or even damaged. If the connector 110 and the shield 120 are made of flexible materials, they are prone to wear or aging during long-term use, which may prevent them from effectively shielding the cap 41. Therefore, in one embodiment, the battery filling baffle structure 100 further includes an elastic covering layer. The shield 120 is a rigid shield 120, and the connector 110 is a rigid connector 110. The elastic covering layer is wrapped around the outer surfaces of the rigid shield 120 and the rigid connector 110, so that the elastic covering layer is in direct contact with the battery casing, effectively reducing the probability of damaging the battery casing. Furthermore, the rigid shield 120 and the rigid connector 110 can provide better structural support for the elastic covering layer, ensuring that the battery filling baffle structure 100 can still maintain a good structure during long-term use, thereby ensuring that it can still effectively shield the cap 41 during long-term use.

[0041] like Figure 2 As shown, in one embodiment, the elastic covering layer includes a first elastic covering sleeve 151 and a second elastic covering sleeve 152. The first elastic covering sleeve 151 is adhesively disposed on the outer surface of the rigid shield 120 to achieve better wrapping, bonding and fixing of the rigid shield 120; the second elastic covering sleeve 152 is adhesively disposed on the outer surface of the rigid connector 110 to achieve better wrapping, bonding and fixing of the rigid connector 110.

[0042] like Figure 2 As shown, in one embodiment, the first elastic cover sleeve 151 is recessed to form a first mounting cavity, and a first adhesive layer 161 is disposed in the first mounting cavity. The rigid shield 120 is embedded in the first mounting cavity and is bonded and fixed to the first elastic cover sleeve 151 through the first adhesive layer 161, so as to achieve better wrapping, bonding and fixing of the rigid shield 120.

[0043] like Figure 2 As shown, in one embodiment, the second elastic cover sleeve 152 is recessed to form a second mounting cavity, and a second adhesive layer 162 is disposed in the second mounting cavity. The rigid connector 110 is embedded in the second mounting cavity and is bonded and fixed to the second elastic cover sleeve 152 through the second adhesive layer 162, so as to achieve better wrapping, bonding and fixing of the rigid connector 110.

[0044] Specifically, in one embodiment, the first elastic cover 151 is a first silicone sleeve; the second elastic cover 152 is a second silicone sleeve, to ensure that the first elastic cover 151 and the second elastic cover 152 have a certain elasticity, so as to effectively reduce scratches and wear on the battery casing.

[0045] In one embodiment, the first elastic sleeve 151 and the second elastic sleeve 152 are integrally formed to ensure the strong connection between the first elastic sleeve 151 and the second elastic sleeve 152.

[0046] In one embodiment, the thickness of the first elastic sleeve 151 is 1.0mm-5.0mm, and the thickness of the second elastic sleeve 152 is 1.0mm-5.0mm, to ensure that the thickness of the first elastic sleeve 151 and the second elastic sleeve 152 is suitable, effectively avoiding the problem that the battery liquid filling baffle structure 100 has a short service life due to the first elastic sleeve 151 or the second elastic sleeve 152 being too thin, and also avoiding the problem that the cost is high due to the first elastic sleeve 151 or the second elastic sleeve 152 being too thick.

[0047] Specifically, in one embodiment, the rigid shield 120 is a stainless steel shield 120 or a carbon steel shield 120; to ensure that the rigid shield 120 has high structural strength, thereby ensuring that the rigid shield 120 can still maintain a good structure during long-term use; especially in conjunction with the rigid connector 110 being a stainless steel connector 110 or a carbon steel connector 110, to ensure that the rigid connector 110 has high structural strength, thereby ensuring that the battery liquid filling baffle structure 100 can still maintain a good structure during long-term use.

[0048] like Figure 3 and Figure 4 As shown, this disclosure also provides a battery liquid injection device 10, including the battery liquid injection baffle structure 100 described in any of the above embodiments. The battery electrolyte filling device 10 includes a moving component, an electrolyte filling component, and a clamp support plate 30. The moving component is used to connect with the connector 110 of the battery electrolyte filling baffle structure 100. The moving component is used to drive the connector 110 to move horizontally or vertically, thereby driving the shielding component 120 to move horizontally or vertically, thus achieving effective shielding of the cap 41. The electrolyte filling component is located on one side of the battery electrolyte filling baffle structure 100. The electrolyte filling component includes a driving component and an electrolyte filling needle 21. The driving component is driven to connect with the electrolyte filling needle 21 to drive the electrolyte filling needle 21 to move horizontally or vertically, thereby completing the electrolyte filling operation of the cylindrical battery 40. The clamp support plate 30 is set on the conveyor frame of the battery electrolyte filling device 10. The clamp support plate 30 is used to fix multiple cylindrical batteries 40 in batches to ensure that multiple cylindrical batteries 40 will not shift during batch electrolyte filling, thereby ensuring that the electrolyte can be fully and accurately injected into the cylindrical battery 40, reducing electrolyte waste.

[0049] It should be noted that since the specific connection structure between the connector 110 and the moving component, and the specific connection structure between the driving component and the injection needle 21 are all existing technologies, they will not be described in detail in this disclosure.

[0050] In one embodiment, the clamp support plate 30 is formed with a plurality of fixing holes 31, each fixing hole 31 for placing a cylindrical battery 40. The fixing holes 31 are arranged in a matrix so that the shielding member 120 of the battery liquid injection baffle structure 100 can achieve batch shielding of multiple cylindrical batteries 40 in a single row, effectively ensuring the liquid injection efficiency.

[0051] Compared with the prior art, this disclosure has at least the following advantages:

[0052] 1) Since the side of the blocking cavity 130 facing the cap 41 has an inclined surface 122, the starting section 1221 of the inclined surface 122 is flush with the top of the blocking cavity 130. The inclined surface 122 is gradually inclined downward from the end near the connector 110 to the end away from the connector 110, so that no blocking protrusion is formed on the side facing the cap 41. When the battery filling baffle structure 100 is running, the cap 41 can slide smoothly along the inclined surface 122 of the blocking cavity 130, effectively reducing the phenomenon of the cap 41 getting stuck, thereby reducing the risk of damaging the cap 41.

[0053] 2) Since the size of the blocking cavity 130 is larger than the size of the cap 41, the cap 41 will not collide with the top of the blocking cavity 130 after being blocked, further reducing the risk of damaging the cap 41.

[0054] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A battery electrolyte filling baffle structure, comprising a connector and a shielding member, wherein the connector and the shielding member are connected to form a blocking cavity, and the side of the shielding member facing away from the blocking cavity is a blocking vertical surface, characterized in that, The shielding member has an inclined surface on the side facing the blocking cavity. The starting section of the inclined surface is flush with the top of the blocking cavity. The inclined surface is gradually inclined downward from the end closer to the connector to the end farther away from the connector. The size of the blocking cavity is larger than the size of the cap.

2. The battery electrolyte filling baffle structure according to claim 1, characterized in that, The tilt angle α of the inclined surface is 1°-35°.

3. The battery electrolyte filling baffle structure according to claim 1, characterized in that, The size of the blocking cavity is equal to (1.01-1.3) times the size of the cap.

4. The battery electrolyte filling baffle structure according to claim 1, characterized in that, The shielding member has an arc-shaped clearance portion on the side facing the injection needle; and / or, The connector and the shield are integrally formed.

5. The battery electrolyte filling baffle structure according to claim 1, characterized in that, The battery liquid injection baffle structure also includes an elastic covering layer, the shielding member is a rigid shielding member, the connecting member is a rigid connecting member, and the elastic covering layer is wrapped around the outer surface of the rigid shielding member and the rigid connecting member.

6. The battery electrolyte filling baffle structure according to claim 5, characterized in that, The elastic covering layer includes a first elastic covering sleeve and a second elastic covering sleeve. The first elastic covering sleeve is bonded to the outer surface of the rigid shielding member; the second elastic covering sleeve is bonded to the outer surface of the rigid connecting member.

7. The battery electrolyte filling baffle structure according to claim 6, characterized in that, The first elastic cover sleeve has a recessed first mounting cavity, and a first adhesive layer is provided in the first mounting cavity. The rigid shield is embedded in the first mounting cavity and is bonded and fixed to the first elastic cover sleeve by the first adhesive layer.

8. The battery electrolyte filling baffle structure according to claim 6, characterized in that, The second elastic cover sleeve has a recessed second mounting cavity, and a second adhesive layer is provided in the second mounting cavity. The rigid connector is embedded in the second mounting cavity and is bonded and fixed to the second elastic cover sleeve by the second adhesive layer.

9. The battery electrolyte filling baffle structure according to claim 6, characterized in that, The first elastic covering sleeve is a first silicone sleeve; and / or... The second elastic covering sleeve is a second silicone sleeve; and / or, The rigid shielding component is a stainless steel shielding component or a carbon steel shielding component; and / or, The rigid connector is a stainless steel connector or a carbon steel connector.

10. A battery electrolyte filling device, characterized in that, The battery liquid injection baffle structure includes any one of claims 1-9.

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