Quick-release battery structure applied to leak detector
The quick-release battery structure design solves the problem of inconvenient battery replacement in portable infrared gas leak detectors, enabling fast and reliable battery installation and removal, and improving the reliability and appearance of the structure.
Patent Information
- Application Number
- CN202423158267.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Portable infrared gas leak detectors require convenient and reliable quick disassembly and assembly when changing batteries, a requirement that current technology struggles to meet.
A quick-release battery structure was designed, including a cell, a casing, a lower casing, a middle casing, and an upper casing. It is connected to the battery compartment's insertion interface through a locking mechanism. Combined with the design of guide grooves and springs, it enables quick installation and removal of the battery. The structural reliability is improved through anodizing treatment.
It enables quick and reliable battery installation and removal, ensuring that the battery is not inserted backwards, has high structural reliability, a clean appearance, and prevents unauthorized disassembly.
Smart Images

Figure CN223941903U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leak detector technology, and in particular to a quick-release battery mechanism for use in leak detectors. Background Technology
[0002] Portable infrared gas leak detectors are now widely used. They feature non-contact imaging temperature measurement and are applied in industries such as power, railway, medical, and security. By using infrared imaging temperature measurement on objects, they can quickly detect areas with abnormal temperatures and avoid many potential risks.
[0003] Portable products generally have a distinct feature: they come with an independent battery. Due to battery life limitations, infrared thermal imagers are usually equipped with two or more replaceable batteries. In many scenarios, battery replacement needs to be convenient and reliable, quick to install and remove, foolproof, and ergonomically designed. Utility Model Content
[0004] This invention provides a quick-release battery structure for use in leak detectors, which is quick to install and remove, convenient and reliable.
[0005] The present invention adopts the following technical solution:
[0006] A quick-release battery structure for use in leak detectors includes a battery cell, a housing disposed outside the battery cell, a lower housing disposed at one end of the housing, and a middle housing and an upper housing disposed at the other end of the housing.
[0007] A locking mechanism is provided between the middle shell and the upper shell. The locking mechanism includes two latches and a movable plate fixedly connected below the latches. The two movable plates are connected by a spring in the middle.
[0008] A limiting hole is provided on the upper shell corresponding to the locking position. The distance between the limiting hole and the spring axis is greater than the width of the locking, so that after the locking is inserted into the limiting hole, the locking moves or is compressed within the limiting hole in the spring axis. An opening is provided on the upper shell wall corresponding to the moving plate position. The insertion section of the moving plate extends out of the enclosed space of the middle shell and the upper shell through the opening. The battery compartment of the leak detector is provided with the insertion interface corresponding to the insertion section.
[0009] This solution incorporates a locking mechanism on the battery, which connects or disconnects from the connector inside the battery compartment, allowing for quick assembly and disassembly.
[0010] Preferably, the spring is located within a guide groove on the surface of the middle shell plate facing the upper shell. This spring's position ensures the stability of the moving plate and the entire locking block.
[0011] As a further improvement to the above solution, a foolproof guide groove is provided on the outer shell in the direction in which the battery is inserted into the battery compartment, and a guide groove is provided on the side wall of the lower shell, with the guide grooves of the two being connected to each other; a protrusion is provided on the inner wall of the leak detector's battery compartment corresponding to the guide groove, and the protrusion is adapted to connect with the guide groove. This solution ensures that the battery is not inserted backwards and that the power cord of the battery and the leak detector are correctly connected.
[0012] As a further improvement to the above solution, the casing and / or lower casing and / or middle casing and / or upper casing are made of anodized aluminum alloy. This solution provides high battery structural reliability and shock and drop resistance.
[0013] As a further improvement to the above solution, several connecting parts located inside the housing are provided at both ends of the housing.
[0014] As a further improvement to the above scheme, the shell connector connecting the lower shell is an inward step with a flange extending toward the central axis of the shell and a through hole provided on the flange; a connecting post is provided on the lower shell plate facing the battery cell, and a screw hole is provided in it; a metric bolt passes through the through hole of the flange and is threadedly connected to the screw hole on the lower shell.
[0015] The shell connector connecting the middle shell is an inwardly recessed step with a flange extending toward the central axis of the shell. The flange is provided with a threaded hole. The metric bolt passes through the through hole provided on the middle shell plate and extends into the threaded hole of the flange for threaded connection.
[0016] Facing the upper shell, several connecting posts are set on the middle shell plate, and the connecting posts are equipped with screw holes; metric bolts are threadedly connected to the middle shell through the through holes in the upper shell; a decorative piece is affixed to the side of the upper shell opposite to the middle shell. This design makes the entire battery structure screwless, resulting in a clean appearance.
[0017] As a further improvement to the above solution, the material of the package is polycarbonate. This allows for the detection of battery disassembly by individuals other than the manufacturer. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the assembly structure of a quick-release battery structure for a leak detector provided in an embodiment of this utility model;
[0019] Figure 2 This is an exploded view of the quick-release battery structure of a leak detector provided in this embodiment of the present invention;
[0020] Figure 3 This is a schematic diagram of the quick-release battery structure of a leak detector provided in this embodiment of the present invention, cut along the spring axis. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0022] See Figure 1 This is a schematic diagram of the assembly structure of a quick-release battery structure for a leak detector according to an embodiment of this utility model. The quick-release battery structure includes a battery cell 1, a housing 2 disposed outside the battery cell, a lower housing 21 disposed at one end of the housing, and a middle housing 22 and an upper housing 23 disposed at the other end of the housing. A locking mechanism is provided between the middle housing and the upper housing, including two latches 31 and a movable plate 32 disposed below the latches. The two movable plates are connected by a spring 33, which is located in a guide groove 34 on the surface of the middle housing facing the upper housing. The movable plate moves axially compressed or reset with the spring.
[0023] A limiting hole 231 is provided on the upper shell corresponding to the locking position. The distance between the limiting holes in the spring axis is greater than the width of the locking buckle, so that after the locking buckle 31 is inserted into the limiting hole 231, the locking buckle can be compressed or reset within the limiting hole in the spring axis. An opening 232 is provided on the side wall of the upper shell corresponding to the moving plate position. The insertion section 321 of the moving plate extends out of the enclosed space of the middle shell and the upper shell through the opening. The battery compartment of the leak detector is provided with the corresponding insertion interface. When the battery is inserted, the two locking buckles are pinched with fingers, the spring is compressed, the two moving plates move relative to each other, and the corresponding insertion section retracts from the opening of the upper shell into the enclosed space of the middle shell and the upper shell, and the battery is smoothly inserted into the battery compartment of the leak detector. When the two locking buckles are released, the two moving plates move in opposite directions and reset under the action of the spring force. The insertion section of the moving plate extends out of the enclosed space of the middle shell and the upper shell and is inserted into the insertion interface in the battery compartment of the leak detector, and the battery installation is completed.
[0024] The battery cell is connected to socket 11, and the lower casing has a corresponding socket hole 211. The socket is a spring-loaded contact socket, which allows for quick and stable insertion and removal.
[0025] In another embodiment, a foolproof double guide groove 20 is provided on the housing, and a double guide groove 210 is also provided on the side wall of the lower housing. After installation, the double guide grooves on the housing and the lower housing are connected to each other. The battery is inserted into the leak detector battery compartment starting from the double guide groove of the lower housing. The inner wall of the leak detector battery compartment is provided with double protrusions corresponding to the double guide grooves. The protrusions are adapted to the guide grooves to ensure that the battery is not inserted backwards and the power cord of the leak detector is correctly connected.
[0026] In another embodiment, the outermost soft pack of the battery cell is an insulating layer, and the outer shell, lower shell, middle shell, and upper shell are aluminum alloy shells that have undergone anodizing treatment, a process that forms an artificial oxide film on the aluminum alloy surface. This oxide film has protective and decorative properties, as well as improved hardness and wear resistance, enhanced heat resistance, insulation, and corrosion resistance. The battery structure has high reliability and is shockproof and drop-resistant.
[0027] In another embodiment, depending on the shape of the shell, several connectors are provided at both ends of the shell, and the number of connectors is determined according to the requirements of connection stability. The shell can be a cylinder, prism, or other shapes. In this embodiment, the shell is a rectangular prism, with four connectors at each end. The connectors are inward-curving steps 24, each step having a flange extending towards the central axis of the rectangular prism, and a through hole 241 on the flange. The inward-curving steps are located within the plane enclosed by the peripheral wall of the shell. A connecting post is provided on the lower shell plate facing the battery cell, with a screw hole 212 inside. A metric bolt passes through the through hole of the flange and is threaded into the screw hole 212 on the lower shell, thereby connecting the shell and the lower shell. One end of the step of the shell is inserted into the inner edge of the side wall of the lower shell, and the outer wall of the lower shell and the outer wall of the shell are located on the same plane.
[0028] The step 24 at the other end of the housing is inserted into the slot 221 on the plate surface of the middle housing near the cell side. The inner wall of the through hole 241 on the flange of the step is threaded, which is the screw hole. The metric bolt passes through the through hole 222 on the plate surface of the middle housing corresponding to the screw hole position of the flange, and extends into the screw hole of the flange to connect the middle housing and the housing. Since the connecting parts are all recessed into the housing, the bolts and connecting parts are not visible to the outside after the housing is connected to the middle housing and the lower housing respectively.
[0029] The flange through holes 241 at both ends of the shell have the same structure, the difference being that the inner wall of the flange through hole near the middle shell end is threaded.
[0030] Facing the upper shell, several connecting posts 223 are provided on the surface of the middle shell plate. Each connecting post has a screw hole, and corresponding through holes 233 are provided on the upper shell plate. Metric bolts connect the upper shell and the middle shell through the through holes and the screw holes in the middle shell. A decorative piece is affixed to the side of the upper shell opposite to the middle shell, making the entire battery structure appear screwless and giving it a clean appearance.
[0031] Decorative piece 4 is a PC sheet made of polycarbonate. The flexibility of the PC sheet allows maintenance personnel to detect if someone other than the manufacturer disassembles the battery.
[0032] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A quick-release battery structure for use in a leak detector, characterized in that, It includes the battery cell, the housing outside the battery cell, the lower housing at one end of the housing, and the middle and upper housings at the other end of the housing; A locking mechanism is provided between the middle shell and the upper shell. The locking mechanism includes two latches and a movable plate fixedly connected below the latches. The two movable plates are connected by a spring in the middle. A limiting hole is provided on the upper shell corresponding to the locking position. The distance between the limiting hole and the spring axis is greater than the width of the locking, so that after the locking is inserted into the limiting hole, the locking moves or is compressed within the limiting hole in the spring axis. An opening is provided on the upper shell wall corresponding to the moving plate position. The insertion section of the moving plate extends out of the enclosed space of the middle shell and the upper shell through the opening. The battery compartment of the leak detector is provided with the insertion interface corresponding to the insertion section.
2. The quick-release battery structure for a leak detector as described in claim 1, characterized in that, The spring is located in a guide groove on the surface of the middle shell plate facing the upper shell.
3. The quick-release battery structure for a leak detector as described in claim 1, characterized in that, In the direction in which the battery is inserted into the battery compartment, a foolproof guide groove is provided on the housing, and a guide groove is provided on the side wall of the lower housing. The guide grooves of the two are connected to each other. A protrusion is provided on the inner wall of the leak detector battery compartment corresponding to the guide groove, and the protrusion is adapted to and connected to the guide groove.
4. The quick-release battery structure for a leak detector as described in claim 1, characterized in that, The shell and / or lower shell and / or middle shell and / or upper shell are aluminum alloy shells that have undergone anodizing treatment.
5. The quick-release battery structure for a leak detector as described in claim 1, characterized in that, The two ends of the housing are provided with several connecting parts located inside the housing.
6. The quick-release battery structure for a leak detector as described in claim 1, characterized in that, The housing connector connecting the lower housing is an inwardly recessed step with a flange extending toward the central axis of the housing and a through hole on the flange; a connecting post is provided on the lower housing plate facing the battery cell, and a screw hole is provided inside it; a metric bolt passes through the through hole of the flange and is threadedly connected to the screw hole on the lower housing. The shell connector connecting the middle shell is an inwardly recessed step with a flange extending toward the central axis of the shell. The flange is provided with a threaded hole. The metric bolt passes through the through hole provided on the middle shell plate and extends into the threaded hole of the flange for threaded connection. Facing the upper shell, several connecting posts are set on the middle shell plate, and the connecting posts are set with screw holes; metric bolts are threadedly connected to the middle shell screw holes through the through holes set in the upper shell; decorative pieces are affixed to the side of the upper shell opposite to the middle shell.
7. The quick-release battery structure for a leak detector as described in claim 1, characterized in that, The upper shell is provided with a decorative piece, which is made of polycarbonate.