Battery holder

Abstract

The utility model discloses a battery holder which comprises a holder body and a positive elastic sheet accommodated in the holder body, a holding part, a connecting part and an elastic arm of the positive elastic sheet jointly form a U-shaped structure with an opening at the upper end, and a limiting part of a plug piece is downwards inserted between the holding part and the elastic part to prevent the elastic arm from excessively shifting towards the direction far away from a battery. The battery holder prevents the stop part on the elastic arm from deviating along with the elastic arm to cause failure of the battery stop effect, prevents the battery from falling off from the accommodating space, ensures the structural stability of the battery holder, does not need to change the structure of the positive elastic sheet, and is beneficial to saving the cost.

Description

Technical Field

[0001] The utility model relates to a battery holder, in particular to a battery holder provided with a plug member.

Background Art

[0002] An existing button battery holder applied to electronic devices is used to accommodate a battery. The battery holder includes a base body and a positive electrode elastic piece and a negative electrode elastic piece accommodated in the base body. The positive electrode elastic piece has a U-shaped structure. A stop portion is bent on one side of the U-shaped structure of the positive electrode elastic piece facing the battery to abut against the upper surface of the battery. The stop portion is located at the top of the battery to stop the battery from moving upward and prevent the battery from falling off the base body.

[0003] However, since the positive electrode elastic piece has a U-shaped structure, it is prone to elastic deformation. When an external force is applied to the positive electrode elastic piece in a direction away from the battery, the U-shaped structure of the positive electrode elastic piece will easily close, resulting in the stop portion shifting away from the battery, so that the stop portion releases the stop on the battery, and children can easily take out the battery, which may easily lead to the situation that children accidentally ingest the battery; and in a high-vibration environment, it may also cause the elastic arm to shift away from the battery, resulting in the failure of the stop effect of the stop portion, and the battery has the risk of falling out of the accommodating groove.

[0004] Therefore, it is necessary to design an improved battery holder to solve the above technical problems.

Content of the Utility Model

[0005] Aiming at the problems in the background art, the purpose of the utility model is to provide a battery holder in which the limiting portion of the plug member is inserted between the holding portion and the elastic arm to limit the excessive deviation of the elastic arm in the direction away from the battery, prevent the stop portion from shifting together with the elastic arm, resulting in the failure of the battery stopping effect, avoid the battery falling off from the accommodating space, ensure the structural stability of the battery holder, and do not need to change the structure of the positive electrode elastic piece, which is beneficial to cost saving.

[0006] To achieve the above object, the present utility model adopts the following technical solutions: A battery holder for accommodating a battery, comprising: a base body having a bottom wall and side walls extending upward from the bottom wall, the bottom wall and the side walls together forming a receiving space for accommodating the battery. One side of the side wall protrudes toward the receiving space to form a protruding portion, and the protruding portion is located at the top of the battery to prevent the battery from moving upward. The base body is provided with a receiving groove extending in the vertical direction, and the receiving groove and the protruding portion are respectively located on opposite sides of the receiving space, and the receiving groove communicates with the receiving space; a positive electrode elastic piece and a negative electrode elastic piece are respectively accommodated in the base body and electrically connected to the battery. The positive electrode elastic piece includes a holding portion received in the receiving groove, a connecting portion connecting the holding portion, and an elastic arm extending from the connecting portion. The elastic arm is exposed in the receiving space, and the elastic arm, the connecting portion, and the holding portion together form a U-shaped structure with an open upper end. The holding portion is located on the side of the elastic arm away from the receiving space. The elastic arm is provided with a blocking portion extending toward the receiving space, and the blocking portion is located at the top of the battery to cooperate with the protruding portion to prevent the battery from moving upward; a plug member, the plug member has a limiting portion inserted downward between the holding portion and the elastic arm, and the limiting portion is used to prevent the elastic arm from excessively deflecting away from the battery.

[0007] Further, the elastic arm has a contact section inclined and extending toward the receiving space and a limiting section located above the contact section. The contact section is used to contact the side surface of the battery, and the limiting section is limited by the limiting portion. Two blocking portions are formed by bending and extending from opposite side edges of the limiting section to jointly block the top surface of the battery. In the horizontal direction, the maximum distance between the limiting portion and the limiting section is less than the length of each blocking portion extending in the horizontal direction.

[0008] Further, two resisting pieces are bent and extended from both sides of the top end of the limiting section toward the direction away from the receiving space, and the two resisting pieces respectively abut against the outer wall surfaces of the side walls. The limiting portion has a first limiting surface facing the limiting section and two second limiting surfaces respectively facing the two resisting pieces. The distance between the second limiting surface and the resisting piece is less than or equal to the distance between the first limiting surface and the limiting section.

[0009] Furthermore, the retaining portion protrudes upward to form an extension portion, and a mounting portion protrudes backward on the rear side of the side wall, and the accommodating groove is formed by passing through the mounting portion in the up-down direction, and the plug has a frame portion with an opening at the bottom end, and the front side of the frame portion is connected to the limiting portion, and the frame portion is sleeved on the outer side of the mounting portion from top to bottom, and both sides of the frame portion respectively protrude downwardly with abutting convex portions to abut against the upper surface of the mounting portion, and the outer edges of the left and right sides of the mounting portion jointly block the displacement of the frame portion in the left-right direction, and a positioning groove is passed downward from the top surface of the frame portion, and a positioning convex portion is protruded upward on the rear wall surface of the mounting portion, and the extension portion and the positioning convex portion are both inserted into the positioning groove to jointly limit the frame portion in the front-back direction.

[0010] Furthermore, a locking groove is provided from the rear wall surface of the mounting portion forward and downward, the locking groove is communicated with the accommodating groove, the upper edge of the locking groove is provided with an inclined surface inclined upward, the retaining portion is provided with a holding piece extending upward, the upper edge of the locking groove is located on the upper side of the holding piece to prevent the holding piece from moving upward, the inner side of the frame portion is provided with a locking arm extending downward and a locking hook protruding forward from the lower end of the locking arm, the locking hook is locked with the inclined surface.

[0011] Furthermore, the frame portion has a top plate and two side plates extending downward from the top plate and a rear plate connecting the two side plates, the limiting portion extends downward from the front side of the top plate and is arranged opposite to the locking arm, the rear plate is located on the rear side of the locking arm and has a gap between the rear plate and the locking arm, and the extension length of the rear plate in the up and down direction is greater than or equal to the extension length of the locking arm in the up and down direction.

[0012] Furthermore, the middle part of the connecting portion and the elastic arm is hollowed out so that a limiting section is formed on the left and right sides of the elastic arm respectively, and a contact elastic arm is bent upward and extended from the middle part of the bottom end of the retaining portion to be electrically connected to the side of the battery, and the contact elastic arm is located in the middle hollow area of ​​the connecting portion and the elastic arm, and a clearance gap is formed from the middle part of the limiting portion facing one side of the contact elastic arm, and the limiting portion forms an abutment surface on the left and right sides of the abutment surface respectively, and the two abutment surfaces are respectively abutted against the two limiting sections.

[0013] Furthermore, the stopping portion is formed by bending and extending from the upper end of the elastic arm toward the accommodating space, and the top end of the plug has a covering portion, which is located above the limiting portion. In the up and down directions, the covering portion covers the upper surface of the stopping portion.

[0014] Further, a mounting portion protrudes backward from the rear side of the side wall. The receiving groove is formed by penetrating the mounting portion in the vertical direction. The holding portion is provided with a slot penetrating in the horizontal direction. A clamping piece extends integrally upward from the lower edge of the slot. A stopper protrudes from a side surface of the receiving groove away from the receiving space. The stopper is located above the clamping piece to stop the upward displacement of the clamping piece. A convex block protrudes from a side of the limiting portion close to the holding portion. The upper edge of the slot stops the upper end of the convex block.

[0015] Further, the covering portion covers the top of the receiving groove and the lower surface of the covering portion abuts against the upper surface of the mounting portion. The rear edge of the covering portion does not extend backward beyond the range of the rear edge of the mounting portion. The front edge of the covering portion does not extend forward beyond the range of the side wall. The edges on both the left and right sides of the covering portion do not extend beyond the ranges of the edges on both the left and right sides of the mounting portion.

[0016] Compared with the prior art, the present utility model has the following beneficial effects: The elastic arm, the connecting portion and the holding portion together form a U-shaped structure with an open upper end. The limiting portion of the plug is inserted between the holding portion and the elastic arm, avoiding the additional increase in the volume of the battery holder due to the setting of the limiting portion, which is beneficial to saving space and meeting the miniaturization requirements of electronic devices. Moreover, the limiting portion restricts the excessive deviation of the elastic arm in the direction away from the battery, preventing the elastic arm from deviating excessively in the direction away from the battery when being manually operated or in a high-vibration environment, so that the blocking portion fails to block the battery as the elastic arm deviates, avoiding the battery falling off from the receiving space due to the loss of the blocking of the blocking portion and preventing the situation of children accidentally swallowing the battery, ensuring the structural stability of the battery holder. Also, it is not necessary to change the structure of the positive electrode elastic piece to block the excessive deviation of the elastic arm in the direction away from the battery, which is beneficial to cost saving.

Description of the Drawings

[0017] Figure 1 is the exploded perspective view of the first embodiment of the battery holder of the present utility model;

[0018] Figure 2 is the perspective view of the first embodiment of the battery holder of the present utility model;

[0019] Figure 3 is the top view of the first embodiment of the battery holder of the present utility model;

[0020] Figure 4 is Figure 3 the cross-sectional view along the A-A direction;

[0021] Figure 5 is Figure 3 the cross-sectional view along the B-B direction;

[0022] Figure 6Schematic diagram of the 180-degree flip of the plug of the first embodiment of the battery holder of the present utility model;

[0023] Figure 7 Stereoscopic diagram of the second embodiment of the battery holder of the present utility model;

[0024] Figure 8 Top view of the second embodiment of the battery holder of the present utility model;

[0025] Figure 9 is Figure 8 Cross-sectional view along the C-C direction;

[0026] Figure 10 Stereoscopic diagram of the second embodiment of the battery holder of the present utility model after installing the battery;

[0027] Figure 11 is Figure 10 Cross-sectional view along the horizontal direction.

[0028] Explanation of the reference numerals in the drawings of the specific implementation manners:

[0029] Base body 1 Bottom wall 11 Side wall 12 Protrusion 121 Receiving space 13 Mounting portion 14 Receiving groove 141 Positioning convex portion 142 Locking groove 143 Inclined surface 1431 Receiving channel 1411 Retention groove 1412 Positive elastic piece 2 Retention portion 21 Clamping piece 211 Extension portion 212 Positive welding portion 22 Connection portion 23 Elastic arm 24 Contact section 241 Restriction section 242 Blocking portion 2421 Blocking piece 2422 Negative elastic piece 3 Fixing portion 31 Negative welding portion 32 Negative contact portion 33 Plug 4 Limiting portion 41 First limiting surface 411 Second limiting surface 412 Frame portion 42 Top plate 421 Abutting convex portion 4211 Positioning groove 4212 Side plate 422 Rear plate 423 Locking arm 424 Locking hook 4241 Battery D Second embodiment Block H Slot F Positive elastic piece 2' Retention portion 21' Clamping piece 211' Connection portion 23' Elastic arm 24' Restriction section 242' Blocking portion 2421' Contact elastic arm 25' Plug 4' Limiting portion 41' Relieving notch 413' Contact surface 414' Protrusion 415' Covering portion 43'

Specific implementation manners

[0030] For better understanding of the purpose, structure, features, and effects of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings and specific implementation manners.

[0031] For the accuracy of description, all directions mentioned in this article shall be referred to Figure 1 For reference, the term "Z-axis direction" refers to the direction parallel to the insertion direction of the plug, that is, the up and down direction (where the positive Z-axis is up). The direction perpendicular to the insertion direction of the plug is the horizontal direction, and the horizontal direction includes the front-back direction and the left-right direction that are perpendicular to each other. Among them, the term "X-axis direction" refers to the direction parallel to the protruding direction of the installation part, that is, the front-back direction (where the positive X-axis is forward). The term "Y-axis direction" refers to the horizontal direction perpendicular to the protruding direction of the installation part, that is, the left-right direction (where the positive Y-axis is left). Among them, the X-axis direction, the Y-axis direction, and the Z-axis direction together constitute the three orthogonal directions of the battery holder. For the convenience of description, the up-down, left-right, and front-back orientations in the present utility model are relative positions and do not constitute a limitation on implementation. The X-axis direction, the Y-axis direction, and the Z-axis direction of the battery holder can be customized according to the specific structure of the product and the perspective presented in the drawings, and the present utility model does not make specific limitations.

[0032] Please refer to Figure 2 and Figure 10 , the battery holder of the present utility model is used to accommodate a battery D, and includes a seat body 1, a positive electrode elastic sheet 2 and a negative electrode elastic sheet 3 are respectively accommodated in the seat body 1 and electrically connected to the battery D, and a plug 4.

[0033] like Figures 1 to 6 The first embodiment of the utility model is shown in FIG. 1. The base body 1 is made of insulating material, and has a bottom wall 11 and a side wall 12 extending upward from the edge of the bottom wall 11. The bottom wall 11 and the side wall 12 are together formed to form a receiving space 13 for receiving the battery D. The front side of the side wall 12 is provided with a plurality of protrusions 121 at intervals toward the receiving space 13. The plurality of protrusions 121 are all located on the top of the battery D and abut against the upper surface of the battery D to prevent the battery D from moving upward. In this embodiment, the protrusions 121 are all block-shaped. A mounting portion 14 is protruded backwards from the rear side of the side wall 12. The mounting portion 14 penetrates through the vertical direction to form a receiving groove 141. The receiving groove 141 and the protruding portion 121 are respectively located at the front and rear sides of the receiving space 13. In the front and rear direction, the receiving groove 141 is connected to the rear side of the receiving space 13. In this embodiment, the receiving groove 141 includes a receiving channel 1411 located in the middle and connected to the receiving space 13 and two retaining grooves 1412 further formed in the left and right directions from the left and right sides of the rear end of the receiving channel 1411. The mounting portion 14 is away from the rear wall surface of the receiving space 13 and protrudes upward to form a positioning protrusion 142. In this embodiment, the top surface of the positioning protrusion 142 is flush with the top surface of the highest point of the side wall 12 in the vertical direction, that is, the positioning protrusion 142 does not exceed the top of the side wall 12, which is conducive to saving space and meeting the requirements of miniaturization of electronic equipment. A locking groove 143 is formed from the rear wall of the mounting portion 14 to the front and downwards. The locking groove 143 is connected to the accommodating groove 141 front to back. An upwardly inclined surface 1431 is formed on the upper edge of the locking groove 143. The locking groove 143 is located at the lower side of the positioning protrusion 142.

[0034] like Figure 1 , Figure 2 and Figure 4As shown, the positive electrode elastic piece 2 and the negative electrode elastic piece 3 are both fixedly installed on the base body 1. The positive electrode elastic piece 2 has a holding part 21 fixedly installed in the accommodating groove 141. Specifically, the left and right side edges of the holding part 21 of the positive electrode elastic piece 2 are respectively fixed in two holding grooves 1412, and the middle part of the holding part 21 is received in the accommodating channel 1411. An extending part 212 protrudes upward from the middle part of the holding part 21; a connecting part 23 extends from the lower end of the holding part 21 and an elastic arm 24 extends from one side of the connecting part 23. The elastic arm 24 is arranged side by side with the holding part 21 in the horizontal direction. The elastic arm 24 is located in front of the holding part 21 and is exposed in the accommodating space 13. The elastic arm 24, the connecting part 23 and the holding part 21 together form a U-shaped structure with an open upper end. The elastic arm 24 has a contact section 241 that extends obliquely towards the accommodating space 13 and a limiting section 242 located above the contact section 241. The contact section 241 is used to abut against the side surface of the battery D. The left and right sides of the limiting section 242 are respectively bent and extended to form a blocking part 2421. Both blocking parts 2421 are located on the top of the battery D to jointly block the upward movement of the battery D and prevent the battery D from falling out of the accommodating space 13. The left and right sides of the top end of the limiting section 242 are respectively bent and extended away from the accommodating space 13 to form a resisting piece 2422. The two resisting pieces 2422 respectively abut against the outer wall surface of the side wall 12 to prevent the elastic arm 24 from deflecting forward excessively and causing the battery D to be not easily installed in place. The holding part 21 is provided with a clamping piece 211 that extends upward. In this embodiment, the clamping piece 211 is formed by tearing from the middle part of the holding part 21 and extends upward. The upper edge of the locking groove 143 is located above the clamping piece 211 to block the upward displacement of the clamping piece 211. In other embodiments, it can also be a clamping convex bump protruding from the rear side surface of the holding part 21, and the upper edge of the locking groove 143 is located above the clamping convex bump to block the upward displacement of the positive electrode elastic piece 2. A positive electrode welding part 22 extends from one side of the holding part 21 to be electrically connected to a circuit board. The negative electrode elastic piece 3 has a fixing part 31 installed on the bottom wall 11 of the base body 1, a negative electrode contact part 33 that extends from one side of the fixing part 31 into the accommodating space 13 to be electrically connected to the lower surface of the battery D, and a negative electrode welding part 32 that extends out of the accommodating space 13 from the other side of the fixing part 31 to be electrically connected to the circuit board;

[0035] As Figure 1 , Figure 4 and Figure 6As shown, the plug member 4 is made of insulating material. The plug member 4 has a limiting portion 41 extending in the up and down direction and a frame portion 42 located at the rear side of the limiting portion 41. The limiting portion 41 has a first limiting surface 411 facing the limiting section 242, and the limiting portion 41 has two second limiting surfaces 412 located on the left and right sides of the first limiting surface 411 facing the two resisting pieces 2422. The front side of the frame portion 42 is connected to the limiting portion 41. The frame portion 42 has a top plate 421, two side plates 422 extending downward from the left and right sides of the top plate 421, and a rear plate 423 connecting the two side plates 422. Two abutting convex portions 4211 protrude downward from both sides of the top plate 421 respectively. A positioning groove 4212 is provided penetrating downward from the top surface of the top plate 421; the top plate 421 is provided with a locking arm 424 extending downward and a locking hook 4241 protruding forward from the lower end of the locking arm 424. The limiting portion 41 extends downward from the front side of the top plate 421 and is disposed opposite to the locking arm 424. The rear plate 423 is located at the rear side of the locking arm 424 and has a gap with the locking arm 424. The extension length of the rear plate 423 in the up and down direction is greater than or equal to the extension length of the locking arm 424 in the up and down direction.

[0036] As Figures 2 to 5As shown, after the battery D is installed in the receiving space 13, the plug 4 is inserted into the mounting portion 14 of the base 1, and the limiting portion 41 is inserted downward between the holding portion 21 and the elastic arm 24, avoiding the additional increase in the volume of the battery holder by the limiting portion 41, which is beneficial to saving space and meeting the requirements of miniaturization of electronic devices. Moreover, it is not necessary to change the structure of the positive electrode elastic piece 2 to block the excessive deviation of the elastic arm 24 in the direction away from the battery D, which is beneficial to cost saving. On the other hand, the limiting portion 41 can also block the excessive deviation of the elastic arm 24 in the direction away from the battery D, preventing the elastic arm 24 from deviating excessively in the direction away from the battery D when being manually moved by an external force or in a high-vibration environment, so that the blocking portion 2421 moves with the elastic arm 24 and the effect of blocking the battery D fails, avoiding the battery D falling off from the receiving space 13 due to the loss of the blocking of the blocking portion 2421 and preventing the situation of children accidentally swallowing the battery D, ensuring the structural stability of the battery holder. Since there is a gap between the holding portion 21 and the elastic arm 24 before the battery D is installed, the contact section 241 is provided on the elastic arm 24, and the elastic arm 24 can have an appropriate deviation to facilitate the installation of the battery D in place, avoiding the contact between the limiting portion 41 and the contact section 241 and causing the deformation of the contact section 241. After the battery D is installed in the receiving space 13, if it encounters an external collision or is accidentally touched by a child, the elastic arm 24 approaches the limiting portion 41, causing the gap between the limiting portion 41 and the elastic arm 24 to disappear, so that the limiting portion 41 can block the excessive backward deviation of the elastic arm 24. The setting of the limiting portion 41 can effectively ensure that the elastic arm 24 will not have excessive deviation even under the condition of external collision or accidental touch by a child, and the blocking portion 2421 always blocks the battery D. Further, the first limiting surface 411 faces the limiting section 242. In the front-rear direction, the maximum distance between the first limiting surface 411 and the limiting section 242 is less than the length of each blocking portion 2421 extending in the horizontal direction, ensuring that the elastic arm 24 will not deviate excessively and cause the blocking effect of the blocking portion 2421 to fail, and ensuring the blocking effect of the limiting portion 41. Further, the two second limiting surfaces 412 face the two resisting pieces 2422 respectively, and the distance between each second limiting surface 412 and the corresponding resisting piece 2422 is less than or equal to the distance between the first limiting surface 411 and the limiting section 242. By limiting the limiting section 242 with the first limiting surface 411 and limiting the two resisting pieces 2422 with the two second limiting surfaces 412, it is ensured that the limiting portion 41 can block the excessive deviation of the elastic arm 24 in multiple directions and ensure the effect of the blocking portion 2421 blocking the battery D. The bottom end of the frame portion 42 is open so that the frame portion 42 is sleeved downward outside the mounting portion 14, and both the two abutting convex portions 4211 abut against the upper surface of the mounting portion 14 to block the downward displacement of the plug 4; the outer edges on the left and right sides of the mounting portion 14 are partially covered by the two side plates 422 to jointly block the displacement of the frame portion 42 in the left-right direction.The extension part 212 of the holding part 21 and the positioning convex part 142 are both inserted into the positioning groove 4212 to jointly limit the frame part 42 in the front-back direction and prevent the displacement of the plug 4 in the front-back direction; the left and right sides of the positioning convex part 142 can also limit the displacement of the frame part 42 in the left-right direction. The upper and lower ends of the locking hook 4241 are both provided with inclined surfaces. When the plug 4 is installed on the installation part 14, the inclined surface at the lower end of the locking hook 4241 abuts against the rear wall surface of the positioning convex part 142, and the inclined surface at the lower end of the locking hook 4241 guides the locking arm 424 to deflect backward. When the plug 4 moves downward until the locking hook 4241 enters the locking groove 143, the restoring force of the locking arm 424 causes the locking arm 424 to deflect forward until the inclined surface at the upper end of the locking hook 4241 abuts against the inclined surface 1431 of the locking groove 143 for buckling and holding, preventing the plug 4 from moving upward. The rear plate 423 is located at the rear side of the locking arm 424 and there is a gap between the rear plate 423 and the locking arm 424, providing space for the locking arm 424 to deflect and facilitating the locking arm 424 to buckle with the inclined surface 1431 of the locking groove 143 downward. In this embodiment, the lower end of the rear plate 423 is flush with the lower end of the locking arm 424, that is, the extension length of the rear plate 423 in the up-down direction is equal to the extension length of the locking arm 424 in the up-down direction, so as to prevent the locking arm 424 from expanding outward excessively during the assembly process and causing the locking arm 424 to break, and to avoid the locking arm 424 being accidentally touched or impacted by external force. The rear plate 423 protects the locking arm 424 so that it is not easily touched by external force and disengaged; in other embodiments, the extension length of the rear plate 423 in the up-down direction can also be greater than the extension length of the locking arm 424 in the up-down direction but does not extend downward beyond the lower edge of the installation part 14, so as to prevent the locking arm 424 from expanding outward excessively during the assembly process and to avoid increasing the height of the battery holder additionally.

[0037] Please refer to Figure 1 、 Figure 2 and Figure 4 , when the battery D needs to be taken out, it is necessary to first lift the plug 4 upward to make the locking arm 424 deflect backward and disengage the locking hook 4241 from the inclined surface 1431 of the locking groove 143, so that the limiting part 41 exits between the elastic arm 24 and the holding part 21, and then operate the elastic arm 24 to make it deflect backward to invalidate the blocking effect of the blocking part 2421, and then take out the battery D. Such step-by-step operation makes it difficult for children to take out the battery D easily and prevents the situation that children accidentally ingest the battery D.

[0038] As Figures 7 to 11As shown in the figure, it is the battery holder of the second embodiment of the present utility model. The mounting portion 14 of the seat body 1 in the second embodiment does not have a positioning convex portion 142. The elastic arm 24' of the positive electrode elastic piece 2' does not have a contact section 241 and a blocking piece 242, and the plug 4' does not have a frame portion 42. Specifically, two stoppers H protrude forward from the rear edge of the accommodation groove 141. The holding portion 21' is provided with two slots F penetrating in the front-rear direction. A clamping piece 211' extends integrally upward from the lower edge of each slot F. The two stoppers H are respectively located above the two clamping pieces 211' to block the upward displacement of the clamping piece 211', preventing the positive electrode elastic piece 2' from moving upward. The connecting portion 23' and the elastic arm 24' are hollow in the middle, so that a limiting section 242' is respectively formed on the left and right sides of the elastic arm 24'. A contact elastic arm 25' extends upward and bends from the middle part of the bottom end of the holding portion 21'. The contact elastic arm 25' is partially located in the middle hollow area of the connecting portion 23' and the elastic arm 24' and extends into the accommodation space 13 to be electrically connected to the side surface of the battery D. Since the contact elastic arm 25' and the elastic arm 24' are independently arranged, the contact elastic arm 25' can freely deflect without being restricted by the elastic arm 24'. When the battery D is installed, the contact elastic arm 25' can deflect independently to facilitate the installation of the battery D in place. Therefore, the limiting portion 41' and the elastic arm 24' can abut against each other. Specifically, a relief notch 413' is recessed on the surface of the middle part of the limiting portion 41' facing the contact elastic arm 25'. The limiting portion 41' forms a contact surface 414' on the left and right sides of the relief notch 413' respectively. The two contact surfaces 414' are respectively located behind the two limiting sections 242' to abut against the two limiting sections 242', blocking the backward deflection of the elastic arm 24' and ensuring the effective blocking effect of the blocking portion 2421' on the battery D; the front side surface of the holding portion 21' abuts against the rear side surface of the limiting portion 41', preventing the limiting portion 41' from moving backward and enhancing the blocking force of the limiting portion 41' on the elastic arm 24'; the relief notch 413' is located directly behind the contact elastic arm 414 to make way for the contact elastic arm 25', preventing the contact elastic arm 25' from abutting against the limiting portion 41' and causing the contact elastic arm 25' to deform, making it difficult to install the battery D in place when replacing the battery D. The blocking portion 2421' extends and bends from the upper end of the elastic arm 24' toward the accommodation space 13. The blocking portion 2421' is located at the top of the battery D to jointly block the upward movement of the battery D with the plurality of protruding portions 121, preventing the battery D from falling out of the accommodation space 13. The top end of the plug 4' has a covering portion 43'. The covering portion 43' is located above the limiting portion 41'. In the up-down direction, the covering portion 43' covers the upper surface of the blocking portion 2421', making it difficult for children to touch the blocking portion 2421', and preventing children from using their fingers or tools to pull up the blocking portion 2421' and causing the blocking effect to fail. Two convex blocks 415' protrude from the rear side surface of the limiting portion 41'. The upper edge of the slot F blocks the upper end of the convex block 415' to prevent the limiting portion 41' from moving upward.The covering part 43' covers the top of the accommodation groove 141, and the lower surface of the covering part 43' abuts against the upper surface of the mounting part 14, causing the blocking plug 4' to move downward. The rear edge of the covering part 43' does not extend backward beyond the rear edge of the mounting part 14, the front edge of the covering part 43' does not extend forward beyond the side wall 12 near the mounting part 14, and the edges on the left and right sides of the covering part 43' do not extend beyond the edges on the left and right sides of the mounting part 14, preventing the plug 4' from increasing the volume of the battery holder in the front-back direction and the left-right direction, which is beneficial for saving space and meeting the requirements of miniaturization of electronic devices.

[0039] Please refer to Figure 9 and Figure 10 , when the battery D needs to be taken out, the plug 4' needs to be lifted upward first, so that the convex block 415' of the limiting part 41' is disengaged from the slot F of the holding part 21', and the limiting part 41' is withdrawn from between the elastic arm 24' and the holding part 21', and then the battery D is taken out. The step-by-step operation makes it difficult for children to take out the battery D easily, preventing the situation that children accidentally ingest the battery D.

[0040] In summary, the battery holder of the present utility model has the following beneficial effects:

[0041] (1) The elastic arm 24, the connecting part 23 and the holding part 21 together form a U-shaped structure with an open upper end. The limiting part 41 of the plug 4 is inserted between the holding part 21 and the elastic arm 24, preventing the setting of the limiting part 41 from additionally increasing the volume of the battery holder, which is beneficial for saving space and meeting the requirements of miniaturization of electronic devices; and the limiting part 41 restricts the elastic arm 24 from excessively deflecting away from the battery D, preventing the elastic arm 24 from excessively deflecting away from the battery D under external force or in a high-vibration environment, so that the blocking part 2421 deflects with the elastic arm 24 and the blocking effect on the battery D fails, avoiding the battery D falling off from the receiving space 13 due to the loss of the blocking of the blocking part 2421, preventing the situation that children accidentally ingest the battery D, and ensuring the structural stability of the battery holder; nor does it need to change the structure of the positive electrode elastic piece 2 to block the elastic arm 24 from excessively deflecting away from the battery D, which is beneficial for cost saving.

[0042] (2) In the front-rear direction, the maximum distance between the first limiting surface 411 and the limiting section 242 is less than the length of each stop portion 2421 extending in the horizontal direction, ensuring that the elastic arm 24 will not be deflected excessively, resulting in the failure of the stopping effect of the stop portion 2421, and guaranteeing the stopping effect of the limiting portion 41; the two second limiting surfaces 412 are respectively facing the two resisting pieces 2422, and the distance between each second limiting surface 412 and the corresponding resisting piece 2422 is less than or equal to the distance between the first limiting surface 411 and the limiting section 242. By limiting the limiting section 242 with the first limiting surface 411 and limiting the two resisting pieces 2422 with the two second limiting surfaces 412, it is ensured that the limiting portion 41 can stop the excessive deflection of the elastic arm 24 in multiple directions, guaranteeing the effect of the stop portion 2421 for stopping the battery D.

[0043] (3) Both of the two abutting convex portions 4211 abut against the upper surface of the mounting portion 14 to stop the downward displacement of the plug member 4; the outer edges on the left and right sides of the mounting portion 14 are partially covered by the two side plates 422 to jointly stop the displacement of the frame portion 42 in the left-right direction; the extending portion 212 and the positioning convex portion 142 are both inserted into the positioning groove 4212 to jointly limit the frame portion 42 in the front-rear direction, preventing the displacement of the plug member 4 in the front-rear direction; the left and right sides of the positioning convex portion 142 can also limit the displacement of the frame portion 42 in the left-right direction.

[0044] (4) The inclined surface at the upper end of the locking hook 4241 guides the locking hook 4241 to engage with the inclined surface 1431 of the locking groove 143, preventing the upward displacement of the plug member 4. The rear plate 423 is located at the rear side of the locking arm 424 and shields the surface of the locking arm 424 away from the accommodating groove 141 in the horizontal direction. There is a gap between the rear plate 423 and the locking arm 424, providing space for the locking arm 424 to deflect, facilitating the downward engagement of the locking arm 424 with the inclined surface 1431 of the locking groove 143. Moreover, the extension length of the rear plate 423 in the up-down direction is greater than or equal to the extension length of the locking arm 424 in the up-down direction, preventing the locking arm 424 from expanding excessively outward during the assembly process, resulting in the fracture of the locking arm 424, and avoiding the locking arm 424 from being accidentally touched or impacted by external forces. The locking arm 424 is protected by the rear plate 423 so that it is not easily disengaged due to external force contact.

[0045] (5) The rear edge of the covering portion 43' does not extend backward beyond the rear edge of the mounting portion 14, the front edge of the covering portion 43' does not extend forward beyond the side wall 12 close to the mounting portion 14, and the edges on the left and right sides of the covering portion 43' do not extend beyond the edges on the left and right sides of the mounting portion 14, avoiding the increase in the volume of the battery holder by the plug member 4' in the front-rear direction and the left-right direction, which is beneficial for saving space and meeting the requirements of miniaturization of electronic devices.

[0046] (6) In the vertical direction, the covering portion 43' covers the upper surface of the blocking portion 2421', making it difficult for children to touch the blocking portion 2421', and preventing children from using their fingers or tools to upwardly lever the blocking portion 2421' to cause the blocking effect to fail.

[0047] (7) The upper edge of the slot F blocks the upper end of the blocking projection 415' to prevent the plug member 4' from upward displacement. The covering portion 43' covers the top of the receiving groove 141 and the lower surface of the covering portion 43' abuts against the upper surface of the mounting portion 14 to block the downward displacement of the plug member 4'. The two abutting surfaces 414' respectively abut against the two limiting sections 242' to block the backward offset of the elastic arm 24' and ensure the effect of the blocking portion 2421' in blocking the battery D. The front side surface of the holding portion 21' abuts against the rear side surface of the limiting portion 41' to prevent the limiting portion 41' from backward displacement and enhance the blocking force of the limiting portion 41' on the elastic arm 24'. The relief notch 413' is located directly behind the contact elastic arm 25' to provide relief for the contact elastic arm 25' and prevent the contact elastic arm 25' from abutting against the limiting portion 41' and causing deformation of the contact elastic arm 25', making it difficult for the battery D to be installed in place.

[0048] (8) To separate the battery D from the seat body 1, it is necessary to first withdraw the plug member 4(4') from between the elastic arm 24(24') and the holding portion 21(21'), and then operate the elastic arm 24(24') to make it offset backward so that the blocking portion 2421(2421') cannot block the battery D, and only then can the battery D be taken out. Such step-by-step operations prevent children from easily taking out the battery D and prevent the occurrence of the situation where children accidentally ingest the battery D.

[0049] The above detailed description is only for the description of the preferred embodiments of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the content of this creative specification and drawings are included in the patent scope of this creation.

Claims

1. A battery holder for accommodating a battery, characterized in that ,include: A seat, the seat having a bottom wall and a side wall extending upward from the bottom wall, the bottom wall and the side wall together forming a receiving space for receiving the battery, a protrusion protruding from one side of the side wall toward the receiving space, the protrusion being located at the top of the battery to prevent the battery from moving upward, the seat having a receiving groove formed along the up-down direction, the receiving groove and the protrusion being located at opposite sides of the receiving space respectively, and the receiving groove being communicated with the receiving space; A positive spring sheet and a negative spring sheet, respectively received in the seat and electrically connected to the battery, the positive spring sheet comprising a retaining portion received in the receiving groove, a connecting portion connected to the retaining portion, and an elastic arm extending from the connecting portion, the elastic arm being exposed in the receiving space, the elastic arm, the connecting portion and the retaining portion jointly forming a U-shaped structure with an upper end opening, the retaining portion being located on a side of the elastic arm away from the receiving space, the elastic arm being provided with a stopping portion extending toward the receiving space, the stopping portion being located on the top of the battery to jointly stop the battery from moving upwards with the protruding portion; A plug having a limiting portion inserted from top to bottom between the retaining portion and the elastic arm, wherein the limiting portion is used to prevent the elastic arm from excessively deviating in a direction away from the battery.

2. The battery holder according to claim 1, wherein: The elastic arm has a contact section extending obliquely toward the accommodating space and a limiting section located above the contact section, the contact section is used to contact the side of the battery, the limiting section is limited by the limiting portion, and two stopping portions are bent and extended from the opposite side edges of the limiting section to jointly stop the top surface of the battery. In the horizontal direction, the maximum distance between the limiting portion and the limiting section is less than the length of each stopping portion extending in the horizontal direction.

3. The battery holder according to claim 2, wherein: A stopper is bent and extended on both sides of the top of the limiting section in a direction away from the receiving space, and the two stoppers respectively abut against the outer wall surface of the side wall. The limiting portion has a first limit surface facing the limiting section and two second limit surfaces facing the two stoppers respectively, and the distance between the second limit surface and the stopper is less than or equal to the distance between the first limit surface and the limiting section.

4. The battery holder according to claim 1, wherein: The retaining portion protrudes upward to form an extension portion, and a mounting portion protrudes backward on the rear side of the side wall, and the accommodating groove is formed by passing through the mounting portion in the up-down direction. The plug has a frame portion with an opening at the bottom end, and the front side of the frame portion is connected to the limiting portion. The frame portion is sleeved on the outer side of the mounting portion from top to bottom, and both sides of the frame portion respectively protrude downward with abutting convex portions to abut against the upper surface of the mounting portion, and the outer edges of the left and right sides of the mounting portion jointly block the displacement of the frame portion in the left-right direction, and a positioning groove is passed downward from the top surface of the frame portion, and a positioning convex portion is protruded upward on the rear wall surface of the mounting portion, and the extension portion and the positioning convex portion are both inserted into the positioning groove to jointly limit the frame portion in the front-back direction.

5. The battery holder according to claim 4, characterized in that: A locking groove is provided from the rear wall surface of the mounting portion to the front and passes through downward, the locking groove is communicated with the accommodating groove, the upper edge of the locking groove is provided with an inclined surface inclined upward, the retaining portion is provided with a holding piece extending upward, the upper edge of the locking groove is located on the upper side of the holding piece to prevent the holding piece from moving upward, the inner side of the frame portion is provided with a locking arm extending downward and a locking hook protruding forward from the lower end of the locking arm, the locking hook is locked with the inclined surface.

6. The battery holder according to claim 5, characterized in that: The frame body has a top plate, two side plates extending downward from the top plate, and a rear plate connecting the two side plates. The limiting portion extends downward from the front side of the top plate and is arranged opposite to the locking arm. The rear plate is located on the rear side of the locking arm and has a gap with the locking arm. The extension length of the rear plate in the up and down direction is greater than or equal to the extension length of the locking arm in the up and down direction.

7. The battery holder according to claim 1, wherein: The middle part of the connecting portion and the elastic arm is hollowed out so that a limiting section is formed on the left and right sides of the elastic arm respectively. A contact elastic arm is bent upward and extended from the middle part of the bottom end of the retaining portion to be electrically connected to the side of the battery. The contact elastic arm is located in the hollowed-out area in the middle of the connecting portion and the elastic arm. A clearance gap is formed from the middle part of the limiting portion facing one side of the contact elastic arm. The limiting portion forms an abutting surface on the left and right sides of the abutting surface respectively, and the two abutting surfaces are respectively abutted against the two limiting sections.

8. The battery holder according to claim 1, wherein: The stopping portion is formed by bending and extending from the upper end of the elastic arm toward the accommodating space. The top end of the plug has a covering portion, which is located above the limiting portion. In the up and down direction, the covering portion covers the upper surface of the stopping portion.

9. The battery holder according to claim 8, characterized in that: A mounting portion is protruding backwards from the rear side of the side wall, the accommodating groove is formed by penetrating from the mounting portion in the up-down direction, the retaining portion is penetrating with a slot in the horizontal direction, a holding piece is integrally extended upward from the lower edge of the slot, a stopper is protruding from a side of the accommodating groove away from the accommodating space, the stopper is located on the upper side of the holding piece to stop the holding piece from moving upwards, a protrusion is protruding from a side of the limiting portion close to the retaining portion, and the upper edge of the slot stops the upper end of the protrusion.

10. The battery holder according to claim 9, characterized in that: The covering portion covers the top of the accommodating groove and the lower surface of the covering portion abuts against the upper surface of the mounting portion, the rear edge of the covering portion does not exceed the range of the rear edge of the mounting portion, the front edge of the covering portion does not exceed the range of the side wall, and the edges on both sides of the covering portion do not exceed the range of the edges on both sides of the mounting portion.

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