Face shell and electrochemical device

Abstract

The utility model provides a face shell and an electrochemical device. The face shell comprises a main body and an annular boss part arranged on one side of the main body in a protruding mode so that a containing groove can be formed in the face shell, the face shell further comprises an elastic buckling part, the elastic buckling part is formed in the annular boss part, the elastic buckling part is located in the containing groove, and the elastic buckling part is used for buckling and limiting the circuit board. According to the face shell, the overall performance of the electrochemical device can be improved while good overall compactness of the face shell is ensured, and the production cost of the electrochemical device can be reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of the production of electrochemical devices, and in particular to a face shell and an electrochemical device. Background Art

[0002] At present, most of the batteries on the market mainly consist of three parts, namely a battery cell, a circuit board and a housing. During the manufacturing process of the battery, it is usually necessary to fix the battery cell and the circuit board in the housing to protect the battery cell structure from damage through the protection of the housing, thereby improving the service life of the battery.

[0003] In the conventional design of the battery, the housing and the buckle on the inner wall of the housing are mainly formed by a hot melting method or a one-shot injection molding method to fix the battery cell and the circuit board in the housing. However, the traditional hot melting method will occupy the installation space of the circuit board. Nowadays, for various types of complete machines on the market, such as POS machine batteries, camera batteries, etc., the overall space given to the battery is small, so that the area of the circuit board in the battery is small, and thus the adjustment space for the electrical connection route of the circuit board will also be small, greatly reducing the overall performance of the battery; while the buckle formed by one-shot injection molding has a hard texture and weak elastic deformation ability, so that when installing the circuit board, the assembly stress between the buckle and the circuit board is too large, which is likely to damage the circuit board and greatly increase the production cost. Utility Model Content

[0004] The purpose of the present disclosure is to overcome the deficiencies in the prior art, and to provide a face shell and an electrochemical device that can not only improve the overall performance of the electrochemical device while ensuring good overall compactness of the face shell, but also reduce the production cost.

[0005] The purpose of the present disclosure is achieved by the following technical solutions:

[0006] A face shell includes a main body and an annular boss portion protruding from one side of the main body, so that the face shell forms a receiving groove;

[0007] The face shell further includes an elastic buckle portion, the elastic buckle portion is formed inside the annular boss portion, the elastic buckle portion is located in the receiving groove, and the elastic buckle portion is used for buckling and limiting the circuit board.

[0008] In one embodiment, the annular boss portion forms a connecting groove, and the elastic buckle portion is formed in the connecting groove.

[0009] In one embodiment, the number of the elastic buckle portions is multiple, and the multiple elastic buckle portions are arranged on both inner walls of the receiving groove.

[0010] In one embodiment, the Shore hardness of the elastic buckle portion ranges from 75D to 85D.

[0011] In one embodiment, the elastic snap portion includes a connecting portion and an elastic snap portion connected to each other. The connecting portion is formed on the annular boss portion, and the elastic snap portion is located in the receiving groove for snap-limiting the circuit board.

[0012] In one embodiment, the connecting portion and the elastic snap portion are an integrally formed structure.

[0013] In one embodiment, a guiding inclined surface is formed at an end of the elastic snap portion adjacent to an opening of the receiving groove, and the guiding inclined surface extends to the connecting portion.

[0014] In one embodiment, a clamping surface is formed at an end of the elastic snap portion adjacent to a bottom of the receiving groove. The clamping surface extends to the connecting portion along a plane perpendicular to an inner sidewall of the receiving groove, and the clamping surface abuts against the circuit board.

[0015] In one embodiment, the front shell further includes a connector. The main body is provided with a connecting through hole, and the connector passes through the connecting through hole. The connector is fixedly connected to the main body. A power input end of the connector is disposed in the receiving groove, and the power input end of the connector is connected to a power output end of the circuit board.

[0016] In one embodiment, a limiting member protrudes from a power input end of the connector, and the limiting member is located in the receiving groove.

[0017] In one embodiment, the circuit board is provided with a limiting hole, and the limiting hole is disposed opposite to the limiting member. The limiting member passes through the limiting hole to limit the circuit board in the receiving groove.

[0018] In one embodiment, the number of the limiting members and the limiting holes is at least two, and each limiting member is disposed in one-to-one correspondence with each limiting hole.

[0019] An electrochemical device includes the front shell according to any one of the above embodiments.

[0020] Compared with the prior art, the present disclosure includes but is not limited to the following advantages:

[0021] 1. For the above-mentioned front shell, since the front shell forms a receiving groove through the main body and the annular boss portion protruding from one side of the main body, and the elastic buckle portion is formed inside the annular boss portion, the elastic buckle portion is located in the receiving groove, and the elastic buckle portion is used for buckling and limiting the circuit board. While ensuring better overall compactness of the front shell, it can also expand the installation space of the circuit board, enabling the electrochemical device to use a circuit board with a larger area. Furthermore, the adjustment space for the electrical connection route of the circuit board is relatively large, improving the overall performance of the electrochemical device.

[0022] 2. Also, because the texture of the elastic buckle portion is relatively soft, it has stronger elastic deformation ability compared to the traditional buckle formed by one-time injection molding. When installing the circuit board, the elastic buckle portion can reduce the installation stress between the circuit board and the elastic buckle portion through elastic deformation, facilitating the installation of the circuit board. At the same time, it also avoids the phenomenon of circuit board damage caused by excessive installation stress, thereby greatly reducing the production cost of the electrochemical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0024] Figure 1 Schematic diagram of the front shell structure of an embodiment;

[0025] Figure 2 For Figure 1 Schematic diagram of the internal structure of the front shell shown;

[0026] Figure 3 For Figure 2 Schematic diagram of the partially enlarged view of the front shell shown;

[0027] Figure 4 For Figure 1 Schematic diagram of the partial structure of the front shell shown;

[0028] Figure 5 For Figure 1 Schematic diagram of another partial structure of the front shell shown;

[0029] Figure 6 For Figure 1 Schematic diagram of yet another partial structure of the front shell shown;

[0030] Figure 7 Schematic diagram of the exploded structure of the electrochemical device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To facilitate the understanding of the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present disclosure more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present disclosure belongs. The terms used in the specification of the present disclosure herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] As Figures 1 to 7 shown, in a face shell 10 in an embodiment, it includes a main body 100 and an annular boss portion 200 protruding from one side of the main body 100, so that the face shell 10 forms a receiving groove 300; the face shell 10 further includes an elastic buckle portion 400, the elastic buckle portion 400 is formed inside the annular boss portion 200, the elastic buckle portion 400 is located in the receiving groove 300, and the elastic buckle portion 400 is used for buckling and limiting a circuit board 600, so that while ensuring better overall compactness of the face shell 10, the installation space of the circuit board 600 can be expanded, enabling the electrochemical device 20 to use a circuit board 600 with a larger area, and further enabling a larger adjustment space for the electrical connection circuit of the circuit board 600, improving the overall performance of the electrochemical device 20.

[0035] As Figures 1 to 7 shown, further, the texture of the elastic buckle portion 400 is relatively soft, and it has stronger elastic deformation ability compared to the traditional buckle formed by one-time injection molding. When installing the circuit board 600, the elastic buckle portion 400 can reduce the installation stress between the circuit board and the elastic buckle portion 400 through elastic deformation, facilitating the installation of the circuit board 600, and at the same time avoiding the phenomenon of damage to the circuit board 600 due to excessive installation stress, thereby greatly reducing the production cost of the electrochemical device 20.

[0036] In this embodiment, first, the main body 100 and the annular boss portion 200 protruding from one side of the main body 100 are formed by injection molding, so that the housing 10 is formed with a receiving groove 300, and the elastic buckle portion 400 is formed inside the annular boss portion 200, so that the elastic buckle portion 400 is located in the receiving groove 300; then, the circuit board 600 is installed in the receiving groove 300 and is arranged between the bottom of the receiving groove 300 and the elastic buckle portion 400 to buckle and limit the circuit board 600 in the receiving groove 300.

[0037] For the above-mentioned housing 10, since the housing 10 forms the receiving groove 300 together with the main body 100 and the annular boss portion 200 protruding from one side of the main body 100, and the elastic buckle portion 400 is formed inside the annular boss portion 200, the elastic buckle portion 400 is located in the receiving groove 300, and the elastic buckle portion 400 is used to buckle and limit the circuit board 600, so that while ensuring better overall compactness of the housing 10, the installation space of the circuit board 600 can be expanded, enabling the electrochemical device 20 to use a circuit board 600 with a larger area, and further enabling a larger adjustment space for the electrical connection routes of the circuit board 600, thereby improving the overall performance of the electrochemical device 20.

[0038] Moreover, since the elastic buckle portion 400 is made of a soft material, it has stronger elastic deformation ability compared to the traditional buckle formed by one-time injection molding. When installing the circuit board 600, the elastic buckle portion 400 can reduce the installation stress between the circuit board and the elastic buckle portion 400 through elastic deformation, facilitating the installation of the circuit board 600, and at the same time avoiding the phenomenon of damage to the circuit board 600 caused by excessive installation stress, thereby greatly reducing the production cost of the electrochemical device 20.

[0039] As Figure 3 shown, in one embodiment, the elastic buckle portion 400 can be a soft glue buckle portion, so that the elastic buckle portion 400 has a high elastic deformation ability.

[0040] As Figure 2 shown, in one embodiment, the annular boss portion 200 is formed with a connecting groove, and the elastic buckle portion 400 is formed in the connecting groove, so that the overall compactness of the housing 10 is better.

[0041] As Figures 1 to 2 shown, in one embodiment, the number of the elastic buckle portions 400 is multiple, and the multiple elastic buckle portions 400 are arranged on the inner walls of both sides of the receiving groove 300, so that the elastic buckle portions 400 can better buckle and limit the circuit board 600 in the receiving groove 300, so that the circuit board 600 can avoid being damaged when the circuit board 600 collides with the groove wall of the receiving groove 300 due to the housing 10 being impacted or affected by other external conditions.

[0042] As Figures 1 to 2 shown, in one embodiment, the Shore hardness range of the elastic snap portion 400 is 75D - 85D, so that the elastic snap portion 400 has good deformation ability, such that when installing the circuit board 600, the elastic snap portion 400 can effectively reduce the installation stress between it and the circuit board 600 through elastic deformation, and at the same time can also avoid the low limiting ability of the elastic snap portion 400 to the circuit board 600 due to the too high elastic deformation ability of the elastic snap portion 400.

[0043] As Figures 2 to 3 shown, in one embodiment, the elastic snap portion 400 includes a connected connecting portion 420 and an elastic snap portion 410. The connecting portion 420 is formed on the annular boss portion 200, so that the overall compactness of the front shell 10 is better; the elastic snap portion 410 is located in the receiving groove 300 for snap-limiting the circuit board 600, such that the circuit board 600 can avoid being damaged when the front shell 10 is impacted or affected by other external conditions and the circuit board 600 collides with the groove wall of the receiving groove 300.

[0044] As Figures 2 to 3 shown, in one embodiment, the connecting portion 420 and the elastic snap portion 410 are an integrally formed structure, so that the elastic snap portion 410 can better snap-limit the circuit board 600 in the receiving groove 300, and at the same time the overall compactness of the front shell 10 is better.

[0045] As Figures 2 to 7 shown, in one embodiment, the elastic snap portion 410 forms a guiding inclined surface 411 at the end adjacent to the opening of the receiving groove 300, and the guiding inclined surface 411 extends to the connecting portion 420, so that when assembling the circuit board 600, the circuit board 600 can enter the gap between the bottom of the receiving groove 300 and the elastic snap portion 410 along the guiding inclined surface 411, making the assembly of the circuit board 600 more convenient and fast, and thus improving the production and assembly efficiency of the electrochemical device 20.

[0046] As Figures 2 to 3 shown, in one embodiment, the elastic snap portion 410 forms a clamping surface 412 at the end adjacent to the bottom of the receiving groove 300. The clamping surface 412 extends to the connecting portion 420 along a plane perpendicular to the inner side wall of the receiving groove 300, and the clamping surface 412 abuts against the circuit board 600, so that the elastic snap portion 410 can block the circuit board 600 from moving along the groove opening direction of the receiving groove 300, such that the elastic snap portion 410 can snap-limit the circuit board 600 in the receiving groove 300.

[0047] As Figures 4 to 7As shown, in one embodiment, the front shell 10 further includes a connector 500. The main body 100 is provided with a connection through-hole 510. The connector 500 passes through the connection through-hole 510 and is fixedly connected to the main body 100. The power input end of the connector 500 is disposed in the receiving groove 300. The power input end of the connector 500 is connected to the power output end of the circuit board 600, so that the circuit board 600 can transmit the power of the battery cell to the connector 500. At the same time, the circuit board 600 can also ensure that the electrochemical device 20 operates within a safe range and protects the electrochemical device 20 from damage.

[0048] As Figures 4 to 6 shown, in one embodiment, a limiting member 520 protrudes from the power input end of the connector 500. The limiting member 520 is located in the receiving groove 300, so that the limiting member 520 can limit the circuit board 600 in the receiving groove 300, so that the circuit board 600 can avoid the circuit board 600 colliding with the groove wall of the receiving groove 300 when the front shell 10 is impacted or affected by other external conditions, resulting in damage to the circuit board 600.

[0049] As Figures 1 to 6 shown, in one embodiment, the circuit board 600 is provided with a limiting hole 610. The limiting hole 610 is disposed opposite to the limiting member 520. The limiting member 520 passes through the limiting hole 610 to limit the circuit board 600 in the receiving groove 300, so that the circuit board 600 can avoid the circuit board 600 colliding with the groove wall of the receiving groove 300 when the front shell 10 is impacted or affected by other external conditions, resulting in damage to the circuit board 600.

[0050] As Figures 1 to 6 shown, in one embodiment, the number of the limiting members 520 and the limiting holes 610 is at least two, and each limiting member 520 is arranged in one-to-one correspondence with each limiting hole 610 to improve the limiting ability of the front shell 10 to the circuit board 600.

[0051] The present disclosure also provides an electrochemical device 20, including the front shell 10 described in any of the above embodiments.

[0052] Compared with the prior art, the present disclosure includes but is not limited to the following advantages:

[0053] 1. For the above-mentioned electrochemical device 20, since the front shell 10 forms the receiving groove 300 together with the main body 100 and the annular boss portion 200 protruding from one side of the main body 100, and the elastic buckle portion 400 is formed inside the annular boss portion 200, the elastic buckle portion 400 is located in the receiving groove 300, and the elastic buckle portion 400 is used for buckling and limiting the circuit board 600. While ensuring better overall compactness of the front shell 10, it can also expand the installation space of the circuit board 600, enabling the electrochemical device 20 to use a circuit board 600 with a larger area. Furthermore, the adjustment space for the electrical connection route of the circuit board 600 is larger, improving the overall performance of the electrochemical device 20.

[0054] 2. Since the elastic buckle portion 400 has a softer texture and stronger elastic deformation ability compared to the traditional buckle formed by one-time injection molding, when installing the circuit board 600, the elastic buckle portion 400 can reduce the installation stress between the circuit board and the elastic buckle portion 400 through elastic deformation, facilitating the installation of the circuit board 600. At the same time, it also avoids the phenomenon of damage to the circuit board 600 caused by excessive installation stress, thereby greatly reducing the production cost of the electrochemical device 20.

[0055] The above embodiments only represent several implementation manners of the present disclosure. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the disclosed patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several modifications and improvements can still be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent shall be subject to the appended claims.

Claims

1. A face shell, comprising a main body and an annular boss portion protruding from one side of the main body, so that a receiving groove is formed in the face shell; It is characterized in that The face shell further includes an elastic buckle portion, which is integrally formed inside the annular boss portion. The elastic buckle portion is located in the receiving groove and is used for buckling and limiting a circuit board.

2. The front shell according to claim 1, characterized in that, The annular boss portion is formed with a connecting groove, and the elastic buckle portion is formed in the connecting groove; and / or, The number of the elastic buckle portions is multiple, and the multiple elastic buckle portions are respectively arranged on the inner walls on both sides of the receiving groove; and / or, The Shore hardness range of the elastic buckle portion is 75D - 85D.

3. The front shell according to claim 1, characterized in that, The elastic buckle portion includes a connecting portion and an elastic buckling portion connected to each other. The connecting portion is formed on the annular boss portion, and the elastic buckling portion is located in the receiving groove for buckling and limiting the circuit board.

4. The front shell according to claim 3, wherein The connecting portion and the elastic buckling portion are of an integrally formed structure.

5. The front shell according to claim 3, wherein The elastic buckling portion forms a guiding inclined surface at the end adjacent to the opening of the receiving groove, and the guiding inclined surface extends to the connecting portion; and / or, The elastic buckling portion forms a clamping surface at the end adjacent to the bottom of the receiving groove. The clamping surface extends to the connecting portion along a plane perpendicular to the inner wall of the receiving groove, and the clamping surface abuts against the circuit board.

6. The front shell according to claim 1, characterized in that, The face shell further includes a connector. The main body is provided with a connecting through hole, and the connector passes through the connecting through hole. The connector is fixedly connected to the main body. The power input end of the connector is arranged in the receiving groove, and the power input end of the connector is connected to the power output end of the circuit board.

7. The front shell according to claim 6, characterized in that, The power input end of the connector protrudes with a limiting member, and the limiting member is located in the receiving groove.

8. The front shell according to claim 7, wherein The circuit board is provided with a limiting hole, and the limiting hole is arranged opposite to the limiting member. The limiting member passes through the limiting hole to limit the circuit board in the receiving groove.

9. The front shell according to claim 8, wherein The number of the limiting members and the limiting holes is at least two, and each limiting member is arranged in one-to-one correspondence with each limiting hole.

10. An electrochemical device, characterized in that, Including the face shell according to any one of claims 1 to 9.

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