Battery compartment structure capable of preventing electrode elastic sheet from being broken under strong impact

By employing a dual-sided positive electrode spring and a buffer cover structure in the battery compartment, the problem of easy damage to the positive electrode spring under strong impact in the scope's battery compartment is solved, achieving stable electrical connection and convenient battery replacement.

CN224006071UActive Publication Date: 2026-03-17ZHUHAI TIANFENG PHOTOELECTRIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-02-10
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The positive electrode spring of the existing scope battery compartment is prone to fatigue, deformation or breakage under strong impact, resulting in poor battery compartment contact, affecting service life and inconvenience in disassembly and assembly.

Method used

The design incorporates a double-sided positive electrode spring structure, combined with a buffer cover and a rubber buffer cover. The curved contact part and elastic deformation buffer the impact force, and the magnetic pad and carrier plate ensure a stable connection to prevent the positive electrode spring from failing to contact the circuit board.

Benefits of technology

It effectively prevents the positive electrode spring from deforming or breaking under strong impact, maintains a stable connection of the battery compartment, extends service life, and simplifies the battery installation and removal process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a battery compartment structure for preventing breakage of electrode spring plates under strong impact, which comprises a mirror body and a circuit board, the bottom of the mirror body is provided with a concave battery cavity, the battery compartment structure further comprises two positive electrode spring plates and a buffer blocking cover, the inner wall of the battery cavity is provided with an arc-shaped inner wall, and the buffer blocking cover is provided with an arc-shaped outer wall. The arc-shaped outer wall and the arc-shaped inner wall form a battery bin in a surrounding mode, the two positive electrode elastic pieces are located in the battery bin and located on the two sides of the battery bin respectively, and the two positive electrode elastic pieces are located on the two sides of the mirror body in the length direction respectively. The positive electrode elastic pieces can avoid front impact of impact force, the buffer blocking cover can physically limit the button cell and can buffer forward and backward impact force between the button cell and the arc-shaped outer wall, and when the mirror body is impacted by falling, vibration, gun recoil and the like, the two positive electrode elastic pieces can buffer kinetic energy. Deformation and even breakage of the positive electrode elastic sheet caused by direct impact are avoided, and the problems of impact power failure, flickering and poor contact in a traditional structure are solved.
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Description

Technical Field

[0001] This utility model relates to the field of aiming scopes, and in particular to a battery compartment structure that prevents the electrode spring from breaking under strong impact. Background Technology

[0002] Currently, the battery compartment of open-type red dot sights is usually designed at the bottom of the scope body. The bottom of the battery compartment has a negative electrode spring and a positive electrode spring. The positive electrode spring in the battery compartment is usually designed on the center line of the length direction of the scope body and is mostly a single spring. During firing, the scope body will be subjected to a large recoil force, that is, the scope body will be subjected to a large forward and backward impact force along its length direction. Since the positive electrode spring is designed on the center line of the length direction of the scope body, it will be subjected to the frontal impact of the impact force. With the extension of the usage time, under the strong impact force, the elasticity of the positive electrode spring is prone to fatigue or the contact between the positive electrode spring and the circuit board is prone to detachment. The positive electrode spring is prone to deformation or even breakage, resulting in power failure, flickering, poor contact. After repeated impacts, the failure rate of the positive electrode spring increases significantly, reducing its service life. Moreover, the existing positive electrode spring is designed with a limit angle to fasten to the positive surface of the button battery, making it inconvenient to remove and install the button battery. The button battery must always avoid the upper limit angle of the positive electrode spring to be installed into the battery compartment. Utility Model Content

[0003] This invention provides a battery compartment structure to prevent electrode springs from breaking under strong impact, thereby solving the above-mentioned technical problems.

[0004] According to one aspect of this utility model, a battery compartment structure is provided to prevent electrode springs from breaking under strong impact, including a mirror body and a circuit board. The bottom of the mirror body has a recessed battery cavity, the circuit board is located at the bottom of the battery cavity, the circuit board has a negative electrode spring, and also includes two positive electrode springs and a buffer cover.

[0005] The battery cavity has an arc-shaped inner wall, and a buffer cover is located inside the battery cavity. The buffer cover has an arc-shaped outer wall, and the arc-shaped outer wall and the arc-shaped inner wall together form a battery compartment for holding button batteries.

[0006] Both positive electrode contacts are located on the circuit board and electrically connected to the circuit board. The two positive electrode contacts are located in the battery compartment and on both sides of the battery compartment. The two positive electrode contacts are located on both sides of the length direction of the mirror body.

[0007] The battery compartment structure of this utility model places the button battery in the battery compartment. Since there are two positive electrode springs, located on both sides of the length of the scope, when the scope is subjected to a large front-to-back impact force along its length, the positive electrode springs can avoid the frontal impact of the impact force, reducing the risk of contact failure between the positive electrode springs and the circuit board. Moreover, the buffer cover can be made of rubber, which can not only physically limit the button battery to prevent displacement due to impact, but also use its own elastic deformation to buffer the front-to-back impact force between the button battery and the arc-shaped outer wall, avoiding a hard collision between the button battery and the scope. In addition, the two positive electrode springs can radially constrain the button battery to prevent it from moving radially within the battery compartment. When the scope is subjected to impacts such as drops, vibrations, or recoil from firearms, the two positive electrode springs can buffer the kinetic energy, preventing direct impact from causing deformation or even breakage of the positive electrode springs. This solves the problems of impact-induced power failure, flickering, and poor contact in traditional structures.

[0008] Preferably, the contact portion of the positive electrode spring that contacts the positive electrode of the button cell is arc-shaped.

[0009] When a button cell is placed in the battery compartment, the contact portion on the positive electrode spring abuts against the side wall of the button cell.

[0010] Therefore, the arc-shaped contact portions of the two positive electrode springs can radially limit the two sides of the button battery. When the scope is subjected to impacts such as drops, vibrations, or recoil from firearms, the arc-shaped contact portions have elastic deformation that can buffer the impact kinetic energy, preventing direct impact from causing deformation or even breakage of the positive electrode springs and failure of contact between the positive electrode springs and the circuit board.

[0011] Preferably, the two positive electrode springs are symmetrically distributed about the centerline of the mirror body along its length.

[0012] Therefore, the two symmetrically distributed positive electrode plates can both limit the radial direction of the button cell in a balanced manner and buffer the impact kinetic energy in a balanced manner.

[0013] Preferably, the bottom of the positive electrode spring is provided with a support plate, the support plate is provided with at least one insertion protrusion, the circuit board is provided with an insertion groove, the support plate abuts against the bottom of the circuit board and the insertion protrusion on the support plate is inserted into the insertion groove.

[0014] Therefore, the positive electrode spring can be electrically connected to the circuit board through the plug-in protrusion, and the carrier plate can ensure that the positive electrode spring is firmly installed on the circuit board, further reducing the risk of poor contact between the positive electrode spring and the circuit board when it is subjected to impact force.

[0015] Preferably, there are two insertion protrusions on the carrier plate, which are arranged vertically. The circuit board has four insertion slots, two of which are adapted to the two insertion protrusions on one positive electrode spring, and the other two are adapted to the two insertion protrusions on another positive electrode spring.

[0016] Therefore, the positive electrode spring can be securely mounted on the circuit board through two plug-in protrusions. Even if one plug-in protrusion has poor contact with the circuit board, the other plug-in protrusion can achieve electrical connection.

[0017] Preferably, it also includes a gasket, which is disposed on the inner bottom of the battery compartment to cover the circuit board. The gasket has a through hole, through which the negative electrode spring on the circuit board passes and protrudes from the upper surface of the gasket.

[0018] Therefore, gaskets can protect the surface of the circuit board.

[0019] Preferably, it also includes a buffer washer, which is located on the inner bottom of the battery compartment, and the height of the buffer washer is not higher than the height of the negative electrode spring.

[0020] Therefore, the buffer gasket can buffer the axial impact force on the button battery, protect the elasticity of the negative electrode spring, and keep the button battery stable when installed in the battery compartment.

[0021] Preferably, it also includes a magnetic pad, and the circuit board has a receiving hole, in which the magnetic pad is received and adsorbed on the inner bottom of the battery cavity.

[0022] Therefore, the button batteries installed in the battery compartment can be firmly held in place by the magnetic pads, preventing them from falling out.

[0023] Preferably, there are two magnetic pads and two receiving holes, with the two magnetic pads respectively housed in the two receiving holes.

[0024] Therefore, the button battery installed in the battery compartment can be firmly held in place by two magnetic pads.

[0025] Preferably, the negative electrode spring includes an integrally connected flat portion and a raised portion, with the flat portion disposed on the circuit board.

[0026] Therefore, the raised part of the negative electrode spring is elastic. When the button battery is subjected to axial impact force, the raised part can still continuously press against the negative terminal of the button battery to maintain the conduction of the circuit. The flat part of the negative electrode spring can be soldered to the circuit board, and the negative electrode spring is connected to the circuit on the circuit board through the flat part. Attached Figure Description

[0027] Figure 1This is a schematic diagram of a battery compartment structure for preventing electrode spring breakage under strong impact according to the present invention.

[0028] Figure 2 for Figure 1 The diagram shows a disassembled structure of the battery compartment.

[0029] Figure 3 for Figure 2 A schematic diagram of the mirror and buffer cover in the battery compartment structure from another perspective;

[0030] Figure 4 for Figure 1 The diagram shows the structure of the circuit board, positive electrode spring, magnetic pad, and buffer cover in the battery compartment.

[0031] Figure 5 for Figure 1 The diagram shows the structure of the battery compartment after the button battery is installed. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. It should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components.

[0034] See Figures 1 to 5 A battery compartment structure for preventing electrode springs from breaking under strong impact includes a mirror body 1, a circuit board 2, a positive electrode spring 3, a gasket 4, a buffer gasket 5, a magnetic gasket 6, and a buffer cover 12.

[0035] See Figures 1 to 3 The bottom of the mirror body 1 has a concave battery cavity 13. The inner wall of the battery cavity 13 has an arc-shaped inner wall 131. The arc-shaped inner wall 131 is semi-circular in shape. In this embodiment, the middle part of the arc-shaped inner wall 131 is broken to install other components. The buffer cover 12 is installed (e.g., glued or fixed with screws) in the battery cavity 13. The buffer cover 12 has an arc-shaped outer wall 121. The arc-shaped outer wall 121 is semi-circular in shape. The arc-shaped outer wall 121 on the buffer cover 12 and the arc-shaped inner wall 131 of the battery cavity 13 form a battery compartment 11 for holding button batteries. The battery compartment 11 is used to accommodate button batteries. A base plate is detachably installed on the bottom of the mirror body 1 to cover the bottom of the mirror body 1, the buffer cover 12 and the battery compartment 11.

[0036] See Figures 1 to 3 The buffer cover 12 can be made of rubber. The buffer cover 12 can both physically restrain the button battery to prevent displacement due to impact, and can also use its own elastic deformation to buffer the front-to-back impact force between the button battery and the curved outer wall 121. Figure 1 (Along the center line 8) to avoid hard impact between the button battery and the mirror body 1.

[0037] See Figure 1 and Figure 2 The circuit board 2 is fixed on the inner bottom of the battery compartment 11. Part of the circuit board 2 is located at the bottom of the buffer cover 12. The buffer cover 12 can also physically limit the circuit board 2, firmly fix the installation position of the circuit board 2, and prevent displacement caused by impact. In this embodiment, a receiving hole 23 is formed on the bottom of the circuit board 2. The magnetic pad 6 is received in the receiving hole 23 and adsorbed on the inner bottom of the battery compartment 11. The button battery installed in the battery compartment 11 can be firmly adsorbed by the magnetic pad 6 to prevent the button battery from falling off.

[0038] See Figure 2 and Figure 4 In this embodiment, there are two magnetic pads 6 and two receiving holes 23. The two magnetic pads 6 are respectively housed in the two receiving holes 23, and the magnetic pads 6 are adsorbed onto the inner bottom of the battery compartment 11. The button battery installed in the battery compartment 11 can be very firmly adsorbed by the two magnetic pads 6. In other embodiments, the number of magnetic pads 6 and receiving holes 23 can be adjusted appropriately according to installation needs.

[0039] See Figure 1 , Figure 2 and Figure 4Both positive electrode springs 3 are fixed on the circuit board 2 and electrically connected to the circuit board 2. The two positive electrode springs 3 are located in the battery compartment 11 and are located on both sides of the battery compartment 11. The two positive electrode springs 3 are located on both sides of the mirror body 1 along its length. In this embodiment, the two positive electrode springs 3 are symmetrically distributed about the center line 8 of the mirror body 1 along its length. The two positive electrode springs 3 are close to the buffer cover 12. The symmetrically distributed two positive electrode springs 3 can both limit the radial direction of the button battery in a balanced manner and buffer the impact kinetic energy in a balanced manner. Moreover, the buffer cover 12 can also use its own elastic deformation to buffer the impact force between the positive electrode springs 3 and the arc-shaped outer wall 121, so as to avoid the positive electrode springs 3 and the mirror body 1 from having a hard collision.

[0040] See Figure 1 and Figure 2 The contact portion 31 of the positive electrode spring 3 that contacts the positive electrode of the button battery is arc-shaped. When the button battery is placed in the battery compartment 11, the contact portion 31 on the positive electrode spring 3 abuts against the side wall of the button battery. The arc-shaped contact portions 31 of the two positive electrode springs 3 can radially limit the two sides of the button battery. When the scope body 1 is subjected to impacts such as drops, vibrations, and recoil of firearms, the arc-shaped contact portion 31 has elastic deformation that can buffer the impact kinetic energy, preventing the positive electrode spring 3 from deforming or even breaking due to direct impact, and preventing the contact between the positive electrode spring 3 and the circuit board 2 from failing.

[0041] See Figure 2 and Figure 4 The bottom of the positive electrode spring 3 is formed with a support plate 32, and at least one insertion protrusion 33 is formed on the support plate 32. The circuit board 2 is formed with an insertion groove 22, and the inner wall of the insertion groove 22 is provided with a conductive layer that is connected to the circuit on the circuit board 2. The support plate 32 of the positive electrode spring 3 abuts against the bottom of the circuit board 2, and the insertion protrusion 33 on the support plate 32 is inserted into the insertion groove 22 on the circuit board 2. The insertion protrusion 33 can be soldered into the insertion groove 22. The positive electrode spring 3 can achieve electrical connection with the circuit board 2 through the insertion protrusion 33 and the conductive layer on the inner wall of the insertion groove 22. The support plate 32 can ensure that the positive electrode spring 3 is stably installed on the circuit board 2, further reducing the risk of poor contact between the positive electrode spring 3 and the circuit board 2 when subjected to impact force.

[0042] See Figure 2 and Figure 4In this embodiment, there are two insertion protrusions 33 on the carrier plate 32, which are arranged vertically. There are four insertion slots 22 on the circuit board 2. Two of the insertion slots 22 are adapted to the two insertion protrusions 33 on one positive electrode spring 3, and the other two insertion slots 22 are adapted to the two insertion protrusions 33 on another positive electrode spring 3. The carrier plate 32 of each positive electrode spring 3 abuts against the bottom of the circuit board 2, and the two insertion protrusions 33 on the carrier plate 32 are respectively inserted into the two insertion slots 22 on the circuit board 2. The insertion protrusions 33 are soldered in the insertion slots 22. The positive electrode spring 3 can be stably installed on the circuit board 2 through the two insertion protrusions 33. Even if one insertion protrusion 33 has poor contact with the circuit board 2, the other insertion protrusion 33 can achieve electrical connection.

[0043] See Figure 1 and Figure 2 A negative electrode spring 21 is soldered onto the circuit board 2. The negative electrode spring 21 includes a flat part 211 and a raised part 212 integrally connected. The flat part 211 is soldered onto the circuit board 2. The raised part 212 of the negative electrode spring 21 is elastic. When the button battery is subjected to axial impact force, the raised part 212 can still continuously press against the negative terminal of the button battery to maintain the conduction of the circuit. The flat part 211 of the negative electrode spring 21 can be soldered onto the circuit board 2. The negative electrode spring 21 is connected to the circuit on the circuit board 2 through the flat part 211.

[0044] See Figure 1 and Figure 2 The gasket 4 is fixed on the inner bottom of the battery compartment 11. The gasket 4 can cover the circuit board 2 to protect the surface of the circuit board 2. The gasket 4 has a through hole 41 formed on it. The inner wall shape of the through hole 41 is adapted to the outer shape of the flat part 211 of the negative electrode spring 21. The negative electrode spring 21 on the circuit board 2 passes through the through hole 41 and extends out from the upper surface of the gasket 4.

[0045] See Figure 1 and Figure 2 The buffer gasket 5 is housed on the inner bottom of the battery compartment 11. The outer diameter of the buffer gasket 5 is slightly smaller than the inner diameter of the battery compartment 11. The height of the buffer gasket 5 is not higher than the height of the raised part 212 of the negative electrode spring 21. The buffer gasket 5 can buffer the axial impact force on the button battery, can protect the elasticity of the raised part 212 of the negative electrode spring 21, and can also keep the button battery installed in the battery compartment 11 stable.

[0046] See Figures 1 to 5In the battery compartment structure of this utility model, the button battery 7 is installed in the battery compartment 11. The buffer cover 12 can both physically limit the button battery 7 to prevent displacement due to impact, and the buffer cover 12 can also use its own elastic deformation to buffer the front-to-back impact force between the button battery 7 and the arc-shaped outer wall 121. Figure 1 Along the centerline 8, to prevent the button battery 7 from impacting the mirror body 1 head-on, the contact portions 31 on the two positive electrode springs 3 respectively abut against the sidewalls of the button battery 7. The arc-shaped contact portions 31 of the two positive electrode springs 3 can radially limit the two sides of the button battery 7. Since there are two positive electrode springs 3, located on both sides of the mirror body 1 along its length and symmetrically distributed about the centerline 8 of the mirror body 1, when the mirror body 1 is subjected to a large front-to-back impact force along the centerline 8, the two positive electrode springs 3 can avoid the frontal impact of the impact force, reducing the risk of contact failure between the positive electrode springs 3 and the circuit board 2. Furthermore, the two positive electrode springs 3 can provide radial restraint for the button battery in a balanced manner, preventing the button battery from moving radially within the battery compartment 11. When the scope body 1 is subjected to impacts such as drops, vibrations, or recoil from firearms, the arc-shaped contact portion 31 has elastic deformation that can buffer the impact kinetic energy, preventing direct impact from causing deformation or even breakage of the positive electrode spring 3 and failure of contact between the positive electrode spring 3 and the circuit board 2. This solves the problems of impact-induced power failure, flickering, and poor contact in traditional structures. At the same time, the buffer cover 12 can also use its own elastic deformation to buffer the impact force between the positive electrode spring 3 and the arc-shaped outer wall 121, preventing the positive electrode spring 3 from having a hard collision with the scope body 1.

[0047] The above descriptions are merely some embodiments of this utility model, intended to illustrate the technical means of this utility model, and are not intended to limit the technical scope of this utility model. Any obvious improvements made to this utility model by those skilled in the art in conjunction with existing common knowledge fall within the protection scope of this utility model.

Claims

1. A battery compartment structure for preventing electrode spring breakage under strong impact, comprising a mirror body and a circuit board, wherein the bottom of the mirror body has a recessed battery cavity, the circuit board is disposed at the inner bottom of the battery cavity, and a negative electrode spring is disposed on the circuit board, characterized in that, Two positive spring sheets and a buffer cover are further included, An arc-shaped inner wall is arranged on the inner wall of the battery cavity, the buffer cover is arranged in the battery cavity, an arc-shaped outer wall is arranged on the buffer cover, and the arc-shaped outer wall and the arc-shaped inner wall form a battery compartment for placing the button cell, The two positive spring sheets are arranged on the circuit board and electrically connected with the circuit board, and the two positive spring sheets are arranged in the battery compartment and located on two sides of the battery compartment, respectively.

2. The battery compartment structure of claim 1, wherein, The contact part of the positive spring sheet in contact with the positive electrode of the button cell is in an arc shape, When the button cell is accommodated in the battery compartment, the contact part on the positive spring sheet abuts against the side wall of the button cell.

3. The battery compartment structure of claim 1, wherein, The two positive spring sheets are symmetrically distributed about the center line of the length direction of the mirror body.

4. The battery compartment structure of claim 1, wherein, The bottom of the positive spring sheet is provided with a bearing plate, at least one insertion protrusion is arranged on the bearing plate, an insertion slot is arranged on the circuit board, the bearing plate abuts against the bottom of the circuit board, and the insertion protrusion on the bearing plate is inserted into the insertion slot.

5. The battery compartment structure of claim 4, wherein, The number of the insertion protrusions on the bearing plate is two, the two insertion protrusions are arranged vertically, and four insertion slots are arranged on the circuit board, wherein the positions of two insertion slots are matched with the two insertion protrusions on one positive spring sheet, and the positions of the other two insertion slots are matched with the two insertion protrusions on the other positive spring sheet.

6. The battery compartment structure according to any one of claims 1 to 5, characterized by, A gasket is further included, the gasket is arranged on the inner bottom of the battery compartment to cover the circuit board, a through hole is arranged on the gasket, and the negative spring sheet on the circuit board extends out of the upper surface of the gasket after passing through the through hole.

7. The battery compartment structure of claim 1, wherein, A buffer gasket is further included, the buffer gasket is arranged on the inner bottom of the battery compartment, and the height of the buffer gasket is not higher than the height of the negative spring sheet.

8. The battery compartment structure according to any one of claims 1 to 5, characterized by, A magnetic gasket is further included, a receiving hole is arranged on the circuit board, the magnetic gasket is received in the receiving hole and is adsorbed on the inner bottom of the battery cavity.

9. The battery compartment structure of claim 8, wherein, The number of the magnetic gaskets is two, and the number of the receiving holes is two, the two magnetic gaskets are received in the two receiving holes, respectively.

10. The battery compartment structure according to any one of claims 1 to 5, characterized by, The negative spring sheet comprises a planar part and a raised part connected integrally, and the planar part is arranged on the circuit board.