Compact-structure and convenient-to-disassemble battery compartment structure for sighting telescope

Abstract

The battery compartment structure comprises a sighting telescope body, a battery cover, a circuit board, a conductive screw, a wire and a negative electrode contact piece, a battery compartment is arranged on the sighting telescope body, a first internal thread is arranged on the inner wall of the battery compartment, a first conductive layer is arranged on the surface of the first internal thread, and a second conductive layer is arranged on the surface of the second internal thread. External threads are arranged on the outer wall of the annular wall of the battery cover, second conducting layers are arranged on the surfaces of the inner top of the battery cover, the annular wall and the external threads, the conducting screw is arranged in the mirror body in a screwed mode and is communicated with the base material of the mirror body, one end of the wire is arranged on the conducting screw, and the other end of the wire is arranged on the circuit board. According to the battery bin structure for the sighting telescope, the battery cover and the telescope body are used for conducting electricity, the current of the positive electrode of the button battery is conducted to the circuit board through the conductive screw, a positive electrode clamping ring in an existing battery bin structure is omitted, electricity is directly conducted through the telescope body, the diameter of the battery bin can be reduced, the battery can be easily taken out, and the service life of the battery bin is prolonged.

Description

Technical Field

[0001] The invention relates to the field of sights, and in particular to a battery compartment structure for a sight that is compact and easy to disassemble. Background Art

[0002] The scope will be subjected to great impact force from the gun during use. Figure 1 The battery compartment structure of the existing sight is that the positive electrode ring 100 tightly wraps the button battery 200. At this time, the button battery 200 is difficult to remove. During use, due to the huge impact force, the button battery 200 will jump in the battery compartment. The positive electrode ring 100 will be fatigued due to continuous impact, resulting in permanent deformation or direct breakage, which can easily cause the LED light in the sight to lose power and affect the normal use of the sight. Summary of the invention

[0003] The present invention provides a battery compartment structure for a sighting scope with a compact structure and convenient disassembly, comprising a scope body, a battery cover and a circuit board, wherein the scope body is provided with a battery compartment, the circuit board is arranged at the bottom of the battery compartment, the battery cover is threadedly connected with the battery compartment, and further comprises a conductive screw, a wire and a negative electrode contact sheet. The inner wall of the battery compartment is provided with a first internal thread, the surface of the first internal thread is provided with a first conductive layer which is conductive with the substrate of the lens body, the outer wall of the annular wall of the battery cover is provided with an external thread which matches the first internal thread, and the inner top, the annular wall and the surface of the external thread of the battery cover are all provided with a second conductive layer. The conductive screw is screwed into the lens body and is in conduction with the substrate of the lens body. One end of the wire is arranged on the conductive screw, and the other end of the wire is arranged on the circuit board. The negative contact is located on the circuit board. When the button battery is accommodated in the battery compartment and the battery cover is screwed onto the battery compartment, the positive electrode of the button battery contacts the inner top of the battery cover, and the negative electrode of the button battery presses against the negative electrode contact sheet.

[0004] The battery compartment structure for a scope of the present invention is compact and easy to disassemble, wherein a button battery is accommodated in the battery compartment, the negative electrode of the button battery is pressed against the negative electrode contact piece, the battery cover is screwed on the battery compartment, and the positive electrode of the button battery contacts the second conductive layer on the inner top surface of the battery cover, so that the positive electrode of the button battery is conductively connected through the second conductive layer on the battery cover, the first conductive layer on the first inner threaded surface, the base material of the scope body (usually aluminum), the conductive screw, the wire and the circuit board, thereby conducting the positive current of the button battery to the circuit board, thereby achieving connection between the button battery and the circuit board. The battery compartment structure for a scope of the present invention utilizes the battery cover and the scope body for conductivity, and conducts the positive current of the button battery to the circuit board through the conductive screw, thereby eliminating the positive electrode clamp in the existing battery compartment structure and directly changing it to the scope body for conductivity. After eliminating the positive electrode clamp in the existing battery compartment structure, the diameter of the battery compartment can be reduced, and the button battery can also be easily taken out, while achieving effective protection of the battery compartment and extending the service life of the battery compartment.

[0005] Preferably, it also includes a conductive sealing ring, an annular mounting groove is provided on the inner top of the battery cover, the conductive sealing ring is clamped in the annular mounting groove, and the depth of the annular mounting groove is less than the thickness of the conductive sealing ring. When a button battery is placed in the battery compartment and the battery cover is screwed onto the battery compartment, the positive electrode of the button battery contacts the conductive sealing ring, and the positive electrode of the button battery can be connected to the second conductive layer on the inner top surface of the battery cover through the conductive sealing ring.

[0006] Therefore, the conductive sealing ring can not only realize the conductivity between the positive electrode of the button battery and the second conductive layer on the inner top surface of the battery cover, but also play a buffering role for the vibration of the button battery.

[0007] Preferably, a clamping groove is provided at the bottom of the mirror body, and the circuit board is clamped in the clamping groove.

[0008] Therefore, the card slot can provide an installation space for the circuit board.

[0009] Preferably, it also includes a base plate and fixing screws, a fixing groove is provided at the bottom of the mirror body, the base plate is accommodated in the fixing groove to cover the circuit board, a fixing hole is provided on the base plate, and a through hole matching the fixing hole is provided on the circuit board, and the end of the fixing screw passes through the fixing hole and the through hole and is screwed onto the mirror body.

[0010] Therefore, the fixing groove can provide an installation space for the bottom plate, and the bottom plate can effectively protect the circuit board.

[0011] Preferably, the negative electrode contact piece comprises a planar portion and a raised portion which are integrally connected, and the planar portion is arranged on the circuit board.

[0012] Therefore, the raised portion of the negative electrode contact is elastic. Even when there is a strong impact force, the raised portion can still continue to press against the negative electrode of the button battery, ensuring that the positive electrode of the button battery can always press against the inner top of the battery cover. The flat portion of the negative electrode contact can be welded to the circuit board, and the negative electrode contact is connected to the circuit on the circuit board through the flat portion.

[0013] Preferably, the number of the raised portions is four, and the four raised portions are evenly arranged around the periphery of the planar portion.

[0014] Therefore, the four raised portions can be pressed against the negative electrode of the button battery in a balanced manner, and the button battery can be pressed upward and fixed in a balanced manner, so that the positive electrode of the button battery can always be pressed against the inner top of the battery cover in a stable manner.

[0015] Preferably, the planar portion is located directly below the battery compartment.

[0016] Therefore, when the button battery is placed in the battery compartment, it is ensured that the negative electrode of the button battery can be connected to the negative electrode contact.

[0017] Preferably, it also includes a sealing ring, which is sleeved on the battery cover. When the battery cover is screwed onto the battery compartment, the sealing ring is located between the outer wall of the battery cover and the inner wall of the battery compartment.

[0018] Therefore, the sealing ring can make the battery compartment waterproof and dustproof.

[0019] Preferably, a cavity is provided in the mirror body, a protrusion is provided in the cavity, a mounting hole is provided on the protrusion, a second internal thread adapted to the conductive screw is provided on the inner wall of the mounting hole, a third conductive layer conductive to the substrate of the mirror body is provided on the surface of the second internal thread, and the conductive screw is screwed into the mounting hole.

[0020] Therefore, the button battery is accommodated in the battery compartment, the negative pole of the button battery is pressed against the negative pole contact piece, the battery cover is screwed on the battery compartment, the positive pole of the button battery contacts the second conductive layer on the inner top surface of the battery cover, and the positive pole of the button battery is conductively connected through the second conductive layer on the battery cover, the first conductive layer on the first inner threaded surface, the base material of the lens body, the third conductive layer on the second inner threaded surface, the conductive screw, the wire and the circuit board, thereby conducting the positive current of the button battery to the circuit board, thereby realizing the connection between the button battery and the circuit board.

[0021] Preferably, the first conductive layer and the third conductive layer are both formed integrally with the substrate of the lens body, and the second conductive layer is formed integrally with the substrate of the battery cover.

[0022] Therefore, the surfaces of the inner top, annular wall, and external thread of the battery cover can be machined to remove the oxide layer, exposing the unoxidized substrate (usually an aluminum substrate) of the battery cover, and the exposed substrate can form a second conductive layer. The surface of the first inner thread can be machined to remove the oxide layer, exposing the unoxidized substrate (usually an aluminum substrate) of the lens body, and the exposed substrate can form a first conductive layer. The surface of the second inner thread can be machined to remove the oxide layer, exposing the unoxidized substrate of the lens body, and the exposed substrate can form a third conductive layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the disassembled structure of the existing sight battery compartment structure; Figure 2 It is a schematic structural diagram of a battery compartment structure for a sighting scope of the present invention that is compact and easy to disassemble; Figure 3 for Figure 2 The schematic diagram of the disassembled structure of the battery compartment structure for the sight shown; Figure 4 for Figure 2 A schematic structural diagram of a battery compartment structure for a sight shown in another perspective; Figure 5 for Figure 4 The schematic diagram of the cross-sectional structure along the AA direction of the battery compartment structure for the sight shown in the figure after the button battery is installed; Figure 6 for Figure 2 A schematic structural diagram of a battery compartment structure for a sight shown in another perspective; Figure 7 for Figure 6 The schematic diagram of the structure of the battery compartment structure for the scope shown is a schematic diagram of the structure after the bottom plate, fixing screws, circuit board and wires are hidden; Figure 8 for Figure 7 The schematic diagram of the disassembled structure of the battery compartment structure for the sight shown; Fig. 9 for Figure 3 The schematic diagram of the structure of the battery cover in the battery compartment structure for the sight shown. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, unless otherwise specified, "multiple" means two or more; it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements.

[0026] See also Figures 2 to 9 A battery compartment structure for a sighting scope with a compact structure and easy disassembly includes a scope body 1, a battery cover 2, a circuit board 3, a conductive screw 4, a wire 5, a negative contact piece 6, a conductive sealing ring 7, a bottom plate 8, a fixing screw 9 and a sealing ring 10.

[0027] The base material for making the scope body 1 and the battery cover 2 is usually aluminum. When not oxidized, the scope body 1 and the battery cover 2 themselves are conductive. When making a sight, it is necessary to oxidize the surface of the scope body 1 and the battery cover 2 to improve the corrosion resistance and wear resistance of the sight, improve the optical performance, enhance the appearance, etc. The scope body 1 and the battery cover 2 after surface oxidation are usually insulated. If the oxide layer on certain parts of the scope body 1 and the battery cover 2 is removed, the conductive base material can be exposed.

[0028] See also Figure 3The mirror body 1 is formed with a battery compartment 11, the top and bottom of the battery compartment 11 are both open, and the battery compartment 11 is used to accommodate button batteries. The inner wall of the battery compartment 11 is formed with a first internal thread 12, and the surface of the first internal thread 12 is provided with a first conductive layer (not shown) that is conductive with the substrate of the mirror body 1. In this embodiment, the first internal thread 12 on the inner wall of the battery compartment 11 is mechanically processed to remove the surface oxide layer, so as to expose the unoxidized substrate (usually aluminum) of the mirror body 1, and the exposed substrate can form the first conductive layer, that is, the first conductive layer is formed integrally with the substrate of the mirror body 1, and the entire substrate of the mirror body 1 can be used as the first conductive layer, and the substrate of a certain thickness exposed on the surface of the first internal thread 12 can also be used as the first conductive layer, and the thickness of the first conductive layer is not limited. In other embodiments, the surface of the first internal thread 12 can be mechanically processed to remove the oxide layer on a smaller portion of the surface, and then a layer of conductive material, such as aluminum plating, copper plating, etc., is directly plated on the surface of the first internal thread 12, and the plated conductive material is conductive with the substrate of the mirror body 1 through the smaller portion.

[0029] See also Figure 3 and Fig. 9 The outer wall of the annular wall 21 of the battery cover 2 is formed with an external thread 22, and the external thread 22 is adapted to the first internal thread 12 on the inner wall of the battery compartment 11. The battery cover 2 is threadedly connected to the battery compartment 11, and the battery cover 2 can be screwed on the battery compartment 11. The inner top 24 of the battery cover 2, the annular wall 21, and the surface of the external thread 22 are all provided with a second conductive layer (not shown). In this embodiment, the inner top 24, the annular wall 21, and the external thread 22 of the battery cover 2 are mechanically processed to remove the surface oxide layer to expose the unoxidized substrate (usually aluminum) of the battery cover 2. The exposed substrate can form the second conductive layer, that is, the second conductive layer is integrally formed with the substrate of the battery cover 2. The whole base material of the battery cover 2 can be used as the second conductive layer, and the base material of a certain thickness exposed on the inner top 24, the annular wall 21, and the outer thread 22 of the battery cover 2 can also be used as the second conductive layer. The thickness of the second conductive layer is not limited. In this way, when the button battery is accommodated in the battery compartment 11, the positive electrode of the button battery contacts the second conductive layer on the inner top 24 of the battery cover 2, and the positive current of the button battery can be conducted to the second conductive layer on the inner top 24 of the battery cover 2 and the second conductive layer on the outer thread 22 of the battery cover 2 to the first conductive layer on the surface of the first inner thread 12 of the battery compartment 11. In other embodiments, a layer of conductive material, such as aluminum plating, copper plating, etc., can also be directly plated on the inner top 24, the annular wall 21, and the outer thread 22 of the battery cover 2.

[0030] See also Figure 7 and Figure 8A cavity 15 is formed in the mirror body 1, a protrusion 16 is formed in the cavity 15, a mounting hole 17 is formed on the protrusion 16, a second internal thread 18 is formed on the inner wall of the mounting hole 17, the second internal thread 18 is adapted to the conductive screw 4, the conductive screw 4 can be screwed into the mounting hole 17, and a third conductive layer (not shown) conductive to the substrate of the mirror body 1 is provided on the surface of the second internal thread 18. In this embodiment, the oxide layer on the surface of the second internal thread 18 on the inner wall of the mounting hole 17 is removed by mechanical processing to expose the unoxidized substrate of the mirror body 1, and the exposed substrate can form the third conductive layer, that is, the third conductive layer is formed integrally with the substrate of the mirror body 1, and the overall substrate of the mirror body 1 can serve as the third conductive layer. The substrate of a certain thickness exposed on the surface of the battery cover 18 can also be used as the third conductive layer, and the thickness of the third conductive layer is not limited. In this way, when the button battery is accommodated in the battery compartment 11 and the conductive screw 4 is screwed into the mounting hole 17, the positive electrode of the button battery contacts the second conductive layer on the surface of the inner top 24 of the battery cover 2, and the positive current of the button battery is conducted to the second conductive layer on the surface of the inner top 24 of the battery cover 2 and is conducted to the first conductive layer on the surface of the first inner thread 12 of the battery compartment 11 through the second conductive layer on the surface of the annular wall 21 of the battery cover 2 and the second conductive layer on the surface of the external thread 22, and is conducted to the third conductive layer on the surface of the second inner thread 18 through the substrate of the lens body 1, and the positive current on the third conductive layer is then conducted to the conductive screw 4. In other embodiments, the oxide layer on the surface of a smaller portion of the second inner thread 18 can be removed by mechanical processing, and then a layer of conductive material, such as aluminum plating, copper plating, etc., is directly plated on the surface of the second inner thread 18, and the plated conductive material is conducted to the substrate of the lens body 1 through the smaller portion.

[0031] See also Figure 3 One end of the wire 5 is welded to the conductive screw 4, and the other end of the wire 5 is welded to the positive electrode pad on the circuit board 3. In this way, when the button battery is accommodated in the battery compartment 11 and the conductive screw 4 is screwed into the mounting hole 17, the positive electrode of the button battery contacts the second conductive layer on the surface of the inner top 24 of the battery cover 2, and the positive current of the button battery can be conducted to the circuit board 3 through the second conductive layer on the surface of the inner top 24 of the battery cover 2, the second conductive layer on the surface of the annular wall 21, the second conductive layer on the surface of the external thread 22, the first conductive layer on the upper surface of the first internal thread 12, the base material of the lens body 1, the third conductive layer on the surface of the second internal thread 18, the conductive screw 4, and the wire 5.

[0032] The circuit board 3 is mounted at the bottom of the battery compartment 11. Figure 7 and Figure 8 A snap-in groove 13 is formed at the bottom of the lens body 1 , and the shape of the snap-in groove 13 matches the shape of the circuit board 3 . The circuit board 3 is snap-into the snap-in groove 13 , and the circuit board 3 is located below the battery compartment 11 .

[0033] See also Figure 3 , the negative electrode contact piece 6 is installed on the circuit board 3, and the negative electrode contact piece 6 includes a flat portion 61 and a tilting portion 62 that are integrally connected. The flat portion 61 can be welded to the negative electrode pad on the circuit board 3, and the negative electrode contact piece 6 is connected to the circuit on the circuit board 3 through the flat portion 61. The number of tilting portions 62 is four, and the four tilting portions 62 are evenly arranged around the periphery of the flat portion 61. When the button battery is accommodated in the battery compartment 11, the negative electrode of the button battery is pressed against the negative electrode contact piece 6, and the tilting portion 62 of the negative electrode contact piece 6 is elastic. The four tilting portions 62 can be balanced against the negative electrode of the button battery, and the button battery is balancedly pressed upward and fixed. When there is a strong impact force, the four tilting portions 62 can still continue to press against the negative electrode of the button battery, ensuring that the positive electrode of the button battery can always be steadily pressed against the inner top 24 of the battery cover 2.

[0034] See also Figure 3 The flat portion 61 is located at the center of the circuit board 3, so that when the button battery is accommodated in the battery compartment 11, it is ensured that the negative electrode of the button battery can be connected to the negative electrode contact 6. When the button battery is accommodated in the battery compartment 11 and the battery cover 2 is screwed on the battery compartment 11, the positive electrode of the button battery contacts the inner top 24 of the battery cover 2, and the negative electrode of the button battery is pressed against the four raised portions 62 of the negative electrode contact 6.

[0035] See also Figures 7 to 9 In this embodiment, an annular receiving groove 23 is formed on the inner top 24 of the battery cover 2, and the conductive sealing ring 7 is clamped in the annular receiving groove 23. The depth of the annular receiving groove 23 is less than the thickness of the conductive sealing ring 7. The conductive sealing ring 7 protrudes from the surface of the inner top 24 of the battery cover 2. See also Figure 4 and Figure 5 When the button battery 200 is accommodated in the battery compartment 11 and the battery cover 2 is screwed on the battery compartment 11, the positive electrode of the button battery 200 contacts the conductive sealing ring 7, and the positive electrode of the button battery 200 is connected to the second conductive layer on the surface of the inner top 24 of the battery cover 2 through the conductive sealing ring 7. The conductive sealing ring 7 can not only realize the conductivity between the positive electrode of the button battery 200 and the second conductive layer on the surface of the inner top 24 of the battery cover 2, but also play a buffering role in the movement of the button battery 200.

[0036] See also Figure 3 , Figures 6 to 8A fixing groove 14 is formed at the bottom of the lens body 1. The area of ​​the fixing groove 14 is larger than the area of ​​the clamping groove 13. The bottom plate 8 is accommodated in the fixing groove 14. The bottom plate 8 can cover the circuit board 3. The fixing groove 14 can provide an installation space for the bottom plate 8. The bottom plate 8 can effectively protect the circuit board 3. A fixing hole 81 is formed on the bottom plate 8. A through hole 31 adapted to the fixing hole 81 is formed on the circuit board 3. The end of the fixing screw 9 passes through the fixing hole 81 and the through hole 31 and is then screwed onto the lens body 1. In this embodiment, the number of the fixing screws 9, the fixing holes 81, and the through holes 31 is four. The ends of the four fixing screws 9 pass through the four fixing holes 81 and the four through holes 31 respectively and are then screwed onto the lens body 1. The bottom plate 8 can be firmly mounted on the lens body 1 through the four fixing screws 9.

[0037] See also Figure 3 , Figure 5 and Fig. 9 A circle of groove 25 is formed on the outer wall of the battery cover 2, and the sealing ring 10 is sleeved on the outer wall of the battery cover 2 and accommodated in the groove 25. When the battery cover 2 is screwed on the battery compartment 11, the sealing ring 10 is located between the outer wall of the battery cover 2 and the inner wall of the battery compartment 11. The sealing ring 10 can achieve waterproof and dustproof for the battery compartment 11.

[0038] See also Figures 2 to 9 The present invention has a compact and easily disassembled battery compartment structure for a sighting scope. A button battery 200 is accommodated in the battery compartment 11. The negative electrode of the button battery 200 is pressed against the four raised portions 62 of the negative electrode contact sheet 6. The battery cover 2 is screwed onto the battery compartment 11. The positive electrode of the button battery 200 contacts the conductive sealing ring 7 on the inner top 24 of the battery cover 2. In this way, the positive current of the button battery is guided to the circuit board 3 through the conductive sealing ring 7, the second conductive layer on the surface of the inner top 24 of the battery cover 2, the second conductive layer on the surface of the annular wall 21, the second conductive layer on the surface of the external thread 22, the first conductive layer on the surface of the first internal thread 12, the base material of the scope body 1, the third conductive layer on the surface of the second internal thread 18, the conductive screw 4, and the wire 5. Thus, the positive current of the button battery 200 is guided to the circuit board 3. The conductive connection between the button battery 200 and the circuit board 3 is now established. At the same time, the conductive sealing ring 7 can buffer the movement of the button battery 200. The four raised portions 62 of the negative electrode contact piece 6 can continuously and steadily press against the negative electrode of the button battery 200, ensuring that the positive electrode of the button battery 200 can always be steadily pressed against the conductive sealing ring 7. The battery compartment structure for the scope of the present invention utilizes the battery cover 2 and the scope body 1 to conduct electricity, and conducts the current of the positive electrode of the button battery 200 to the circuit board 3 through the conductive screw 4, cancels the positive electrode clamp in the existing battery compartment structure, and directly changes to the scope body 1 for conductivity. After canceling the positive electrode clamp in the existing battery compartment structure, the diameter of the battery compartment can be reduced, and the button battery can also be easily taken out, while achieving effective protection of the battery compartment and extending the service life of the battery compartment.

[0039] The above are only some embodiments of the present invention, which are intended to illustrate the technical means of the present invention, but not to limit the technical scope of the present invention. Those skilled in the art can make obvious improvements to the present invention in combination with existing common knowledge, which all fall within the protection scope of the present invention.

Claims

1. A battery compartment structure for a sighting scope with a compact structure and convenient disassembly, comprising a scope body, a battery cover and a circuit board, wherein the scope body is provided with a battery compartment, the circuit board is arranged at the bottom of the battery compartment, and the battery cover is threadedly connected to the battery compartment, characterized in that: It also includes a conductive screw, a wire and a negative contact. The inner wall of the battery compartment is provided with a first internal thread, the surface of the first internal thread is provided with a first conductive layer which is conductive with the substrate of the lens body, the outer wall of the annular wall of the battery cover is provided with an external thread which matches the first internal thread, and the inner top, the annular wall and the surface of the external thread of the battery cover are all provided with a second conductive layer. The conductive screw is screwed into the mirror body and is in conduction with the base material of the mirror body. One end of the wire is arranged on the conductive screw, and the other end of the wire is arranged on the circuit board. The negative electrode contact is arranged on the circuit board. When the button battery is accommodated in the battery compartment and the battery cover is screwed onto the battery compartment, the positive electrode of the button battery contacts the inner top of the battery cover, and the negative electrode of the button battery presses against the negative electrode contact sheet.

2. The battery compartment structure for a sight according to claim 1, characterized in that: The battery cover also includes a conductive sealing ring. The inner top of the battery cover is provided with an annular receiving groove. The conductive sealing ring is clamped in the annular receiving groove. The depth of the annular receiving groove is less than the thickness of the conductive sealing ring. When a button battery is placed in the battery compartment and the battery cover is screwed onto the battery compartment, the positive electrode of the button battery contacts the conductive sealing ring, and the positive electrode of the button battery can be connected to the second conductive layer on the inner top surface of the battery cover through the conductive sealing ring.

3. The battery compartment structure for a sight according to claim 1, characterized in that: The bottom of the mirror body is provided with a clamping groove, and the circuit board is clamped in the clamping groove.

4. The battery compartment structure for a sight according to claim 3, characterized in that: It also includes a base plate and fixing screws. The bottom of the mirror body is provided with a fixing groove, the base plate is accommodated in the fixing groove to cover the circuit board, the base plate is provided with a fixing hole, the circuit board is provided with a through hole adapted to the fixing hole, and the end of the fixing screw passes through the fixing hole and the through hole and is screwed onto the mirror body.

5. The battery compartment structure for a sight according to claim 1, characterized in that: The negative electrode contact piece comprises a flat portion and a raised portion which are integrally connected, and the flat portion is arranged on the circuit board.

6. The battery compartment structure for a sight according to claim 5, characterized in that: The number of the raised portions is four, and the four raised portions are evenly arranged around the periphery of the planar portion.

7. The battery compartment structure for a sight according to claim 6, characterized in that: The plane portion is located directly below the battery compartment.

8. The battery compartment structure for a sight according to claim 1, characterized in that: It also includes a sealing ring, which is sleeved on the battery cover. When the battery cover is screwed onto the battery compartment, the sealing ring is located between the outer wall of the battery cover and the inner wall of the battery compartment.

9. The battery compartment structure for a sight according to claim 1, characterized in that: A cavity is provided in the mirror body, a protrusion is provided in the cavity, a mounting hole is provided on the protrusion, a second internal thread adapted to the conductive screw is provided on the inner wall of the mounting hole, a third conductive layer conductive to the substrate of the mirror body is provided on the surface of the second internal thread, and the conductive screw is screwed into the mounting hole.

10. The battery compartment structure for a sight according to claim 9, characterized in that: The first conductive layer and the third conductive layer are both formed integrally with the substrate of the lens body, and the second conductive layer is formed integrally with the substrate of the battery cover.

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