meter battery

Abstract

This invention discloses a meter battery, comprising a battery casing, a battery cover, a battery, a positive conductive plate, and a negative conductive plate. The battery is placed inside the battery casing. The inner end of the positive conductive plate is located above the positive terminal of the battery. A through hole is formed on the inner end of the positive conductive plate, and the through hole is located above the cylindrical connector of the positive terminal of the battery. Multiple clamping plates extending downwards and elastically clamping the cylindrical connector are arranged circumferentially on the through hole. A spring is provided between the negative terminal of the battery and the bottom end of the battery casing. Under the action of the spring, the inner end of the positive conductive plate abuts against the battery cover. The battery cover is provided with a limiting structure that limits the movement of the positive conductive plate. Using the above solution, this invention provides a meter battery with a more stable and reliable power supply connection.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and more specifically to a meter battery. Background Technology

[0002] Currently, most smart meters operate using battery power. The battery structure generally includes a battery casing, a battery cover, the battery itself, a positive conductive plate, and a negative conductive plate. The battery casing has an opening for inserting or removing the battery. The battery cover is fitted onto the opening of the battery casing and forms a detachable connection with the battery casing. The battery is placed inside the battery casing with the negative terminal facing the bottom of the battery casing and the positive terminal facing the opening of the battery casing. The outer ends of both the positive and negative conductive plates extend outside the battery casing, and the inner end of the negative conductive plate is in contact with the negative terminal of the battery. The cylindrical connector on the positive terminal of the battery maintains abutment with the inner end of the positive conductive plate. Since the positive conductive plate is prone to deformation after long-term use, the above-mentioned single abutment contact is not reliable enough and is prone to poor contact. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a meter battery with a more stable and reliable power supply connection.

[0004] To achieve the above objectives, the present invention provides a meter battery, comprising a battery casing, a battery cover, a battery, a positive conductive plate, and a negative conductive plate. The battery casing has an opening for inserting or removing the battery. The battery cover is fitted onto the opening of the battery casing and forms a detachable connection with the battery casing. The battery is placed inside the battery casing with its negative terminal facing the bottom of the battery casing and its positive terminal facing the opening. The outer ends of both the positive and negative conductive plates extend beyond the battery casing. The inner end of the negative conductive plate contacts the negative terminal of the battery, and the inner end of the positive conductive plate is located above the positive terminal of the battery. A through hole is formed on the inner end of the positive conductive plate, and the through hole is located above the cylindrical connector of the positive terminal of the battery. Multiple downwardly extending clamping plates are circumferentially distributed on the through hole, providing elastic clamping to the cylindrical connector. A spring is provided between the negative terminal of the battery and the bottom of the battery casing, and under the action of the spring, the inner end of the positive conductive plate abuts against the battery cover.

[0005] The present invention may be further configured such that a pressure plate is provided on the through hole at the inner end of the positive electrode conductive sheet, which bends downward and extends elastically against the cylindrical connector.

[0006] The beneficial effects of the present invention are as follows: by adopting the above solution, the inner end of the positive electrode conductive sheet is connected to the cylindrical connector on the positive terminal of the battery through the clamping sheet and the pressing sheet. This not only provides better elasticity in the contact connection, but also makes the power supply connection of the battery more stable and reliable.

[0007] The present invention can be further configured such that multiple pressing plates are circumferentially distributed on the through hole, with the pressing plates and the clamping plates spaced apart. This configuration results in a more reasonable and symmetrical structure.

[0008] The invention can be further configured such that the clamping piece is narrower at the top and wider at the bottom, with its lower end pressing against the positive terminal of the battery. This increases the contact area of ​​the clamping piece, resulting in better stability after contact with the positive terminal. The pressing piece includes a first connecting segment, a second connecting segment, and a third connecting segment. The first connecting segment is connected to the through hole and extends inwardly. The second connecting segment bends upward and presses against the cylindrical connector. The first and second connecting segments are connected by the third connecting segment, which is arc-shaped. This configuration allows the pressing piece to press against the cylindrical connector at the positive terminal of the battery with better elasticity.

[0009] The invention can be further configured such that a raised ring is provided on the inner wall of the battery tube near the opening, and multiple L-shaped insertion interfaces are circumferentially distributed on the raised ring. The vertical ends of the L-shaped insertion interfaces penetrate the raised ring axially upwards. A connecting sleeve is provided on the battery cover to form an axial insertion engagement with the raised ring. A protrusion is formed radially outward on the connecting sleeve to form an insertion engagement with the L-shaped insertion interfaces. When the protrusion moves from the vertical end to the horizontal end of the L-shaped insertion interface, the battery cover and the battery tube form a snap-fit ​​limiting engagement. A first positioning block is formed radially protruding on the opening of the battery tube. A second positioning block is formed. A positioning socket is provided on the first positioning block. A barb is formed on the second positioning block for hooking and limiting with the positioning socket. When the protrusion moves from the vertical end to the horizontal end of the L-shaped insertion interface, the barb is inserted into the positioning socket. The outer ends of the positive and negative conductive sheets both protrude out of the battery tube from the opening of the battery tube. A first positioning groove is formed on the first positioning block for the outer end of the negative conductive sheet to pass through axially and to position the negative conductive sheet. A second positioning groove is formed on the second positioning block to form an axial insertion fit with the outer end of the positive conductive sheet.

[0010] With the above structure, during battery cover assembly, the connecting sleeve on the battery cover first forms an axial insertion fit with the protruding ring at the opening of the battery tube. At this time, the protrusion on the battery cover is inserted along the vertical end of the L-shaped insertion interface. Then, by rotating the battery cover, the protrusion moves from the vertical end to the horizontal end of the L-shaped insertion interface, and the battery cover and battery tube can form a snap-fit ​​limiting fit. At the same time, the barb on the second positioning block will insert into the positioning socket on the first positioning block and form a hook connection, thereby effectively preventing the battery cover from opening after rotating in the opposite direction, thus forming an anti-reverse effect. In addition, the setting of the first and second positioning blocks also effectively positions the positive and negative conductive plates, thereby making the overall structure more stable and reliable.

[0011] The present invention can be further configured such that the battery cover is provided with a limiting structure for limiting the positive conductive sheet. The limiting structure includes an insert groove formed on the battery cover for the inner end of the positive conductive sheet to be fitted into. The limiting structure also includes limiting holes formed on the inner end of the positive conductive sheet, with at least two limiting holes respectively located on both sides of the through hole. The battery cover is correspondingly provided with limiting posts that form an axial insertion fit with the limiting holes. Through the above-mentioned limiting structure, the battery cover can reliably limit the positive conductive sheet, thereby further improving the stability and reliability of the electrical connection.

[0012] The invention can be further configured such that a sealing ring is installed on the opening of the battery casing, and the sealing ring is clamped and installed between the convex ring and the battery cover. By setting the sealing ring, the sealing performance of the connection between the battery cover and the battery casing can be effectively improved. At the same time, due to the above-mentioned convex ring structure, the installation of the sealing ring does not require additional slotting.

[0013] The invention can be further configured such that a fixing block is provided on the outer circumference of the battery tube, and an outer shell is mounted on the fixing block. Two conductive sleeves are mounted on the upper end of the outer shell. The outer ends of the positive and negative conductive plates are both configured as inserts, and are respectively inserted into the two conductive sleeves. Multiple spring tabs are formed in the middle of the conductive sleeves, arching inwards and elastically clamping the positive and negative conductive plates. Each conductive sleeve is provided with an outwardly extending contact tab. This configuration allows the positive and negative conductive plates to better connect to external electrical connectors through the conductive sleeves and contact tabs after extending outwards.

[0014] The invention can be further configured such that the upper end of the fixing block is stepped, the conductive sleeve presses against the upper stepped surface, the connecting tab bends downward and extends downward, with the upper end of the connecting tab being clamped between the lower stepped surface and the outer shell, and the lower end of the connecting tab being clamped between the radial outer end face of the fixing block and the outer shell, extending downward through the outer shell. This configuration provides a more stable and reliable installation and positioning for the conductive sleeve and the connecting tab.

[0015] The invention can be further configured such that the outer casing has downwardly extending, barbed pins. This configuration provides a locking effect after the battery is plugged into an external electrical connector. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention;

[0017] Figure 2 This is an exploded view of the structure of the present invention;

[0018] Figure 3 This is a structural diagram of the battery cover in this invention;

[0019] Figure 4This is a structural diagram of the conductive sleeve in this invention;

[0020] Figure 5 This is an exploded view of the structure of the present invention;

[0021] Figure 6 This is a structural diagram of the battery tube in this invention;

[0022] Figure 7 This is a partial exploded view of the structure of the present invention;

[0023] Figure 8 This is a first structural diagram of a positive electrode conductive sheet;

[0024] Figure 9 This is a second structural diagram of the positive electrode conductive sheet;

[0025] Figure 10 This is a diagram of the third structure of the positive electrode conductive sheet. Detailed Implementation

[0026] like Figure 1-10 The diagram shows a meter battery, including a battery case 1, a battery cover 2, a battery 3, a positive conductive plate 4, and a negative conductive plate 5. The battery case 1 has an opening 101 for inserting or removing the battery 3. The battery cover 2 is fitted onto the opening 101 of the battery case 1 and is detachably connected to the battery case 1. The battery 3 is placed inside the battery case 1, with its negative terminal 31 facing the bottom 102 of the battery case and its positive terminal 32 facing the opening 101. The outer ends 41 and 51 of both the positive and negative conductive plates protrude from the battery case 1. The inner end of the negative conductive plate 5... 52 is in contact with the negative terminal 31 of the battery. The inner end 42 of the positive electrode conductive sheet 4 is located above the positive terminal 32 of the battery. A through hole 43 is opened on the inner end 42 of the positive electrode conductive sheet 4, and the through hole 43 is located above the cylindrical connector 33 of the positive terminal 32 of the battery. Multiple clamping pieces 44 are arranged circumferentially on the through hole 43, extending downward and forming an elastic clamping on the cylindrical connector 33. A spring 103 is provided between the negative terminal 31 of the battery and the bottom end 102 of the battery tube. Under the action of the spring 103, the inner end 42 of the positive electrode conductive sheet 4 abuts against the battery cover 2.

[0027] A pressure plate 45 is also provided on the through hole 43 of the inner end 42 of the positive electrode conductive sheet, which bends downward and extends elastically against the cylindrical connector 33.

[0028] Using the above scheme, the inner end 42 of the positive electrode conductive sheet 4 is connected to the cylindrical connector 33 on the positive terminal 32 of the battery through the clamping piece 44 and the pressing piece 45. This not only provides better elasticity in the contact connection, but also makes the battery power supply connection more stable and reliable through this double, all-around contact connection. Of course, the positive electrode conductive sheet 4 can also only have the clamping piece 44 without the pressing piece 45, and its structure is as follows. Figure 9 As shown.

[0029] Multiple pressing pieces 45 are arranged circumferentially on the through hole 43, and the pressing pieces 45 and the clamping pieces 44 are arranged at intervals. This arrangement makes the structure more reasonable and symmetrical.

[0030] The clamping piece 44 is narrower at the top and wider at the bottom, with its lower end pressing against the positive terminal 32 of the battery. This provides a larger contact surface for the clamping piece 44, resulting in better stability after contact with the positive terminal 32. The pressing piece 45 includes a first connecting section 451, a second connecting section 452, and a third connecting section 453. The first connecting section 451 is connected to the through hole 43 and extends inwardly. The second connecting section 452 is bent upward and presses against the cylindrical connector 33. The first connecting section 451 and the second connecting section 452 are connected by the third connecting section 453, which is curved. This design allows the pressing piece 45 to press against the cylindrical connector 33 of the positive terminal 32 of the battery with better elasticity.

[0031] A raised ring 104 is provided on the inner wall of the battery tube 1 near the opening 101, and multiple L-shaped insertion interfaces are circumferentially distributed on the raised ring 104. The vertical end 105 of the L-shaped insertion interface passes through the raised ring 104 axially upward. The battery cover 2 is provided with a connecting sleeve 21 that forms an axial insertion engagement with the raised ring 104. The connecting sleeve 21 has a radially outward protruding protrusion 22 that forms an insertion engagement with the L-shaped insertion interface. When the protrusion 22 moves from the vertical end 105 of the L-shaped insertion interface to the horizontal end 106, the battery cover 2 and the battery tube 1 form a snap-fit ​​limiting engagement. A first positioning block 107 is radially protruding on the opening 101 of the battery tube 1, and a second positioning block is formed on the battery cover 2. 23. A positioning socket 108 is provided on the first positioning block 107, and a barb block 24 is formed on the second positioning block 23 for hooking and limiting with the positioning socket 108. When the protrusion 22 moves from the vertical end 105 of the L-shaped insertion interface to the horizontal end 106, the barb block 24 is inserted into the positioning socket 108. The outer ends of the positive and negative conductive sheets both protrude from the opening 101 of the battery tube 1. A first positioning groove 109 is formed on the first positioning block 107 for the outer end 51 of the negative conductive sheet 5 to pass through axially and to position the negative conductive sheet 5. A second positioning groove 25 is formed on the second positioning block 23 to form an axial insertion fit with the outer end 41 of the positive conductive sheet 4.

[0032] With the above structure, during assembly of the battery cover 2, the connecting sleeve 21 on the battery cover 2 first forms an axial insertion fit with the protruding ring 104 at the opening 101 of the battery tube. At this time, the protrusion 22 on the battery cover 2 is inserted along the vertical end 105 of the L-shaped insertion interface. Then, by rotating the battery cover 2, the protrusion 22 moves from the vertical end 105 of the L-shaped insertion interface to the horizontal end 106, and the battery cover 2 and the battery tube 1 can form a snap-fit ​​limiting fit. At the same time, the barb block 24 on the second positioning block 23 will be inserted into the positioning socket 108 on the first positioning block 107 and form a hook connection, thereby effectively preventing the battery cover 2 from opening after rotating in the opposite direction, that is, forming a backstop effect. In addition, the setting of the first and second positioning blocks also effectively positions the positive and negative conductive plates, thereby making the overall structure more stable and reliable. To facilitate the rotation of the battery cover 2, a handle 26 can also be provided on the battery cover 2.

[0033] The battery cover 2 is provided with a limiting structure to limit the positive conductive sheet 4. The limiting structure includes an insert groove 27 formed on the battery cover 2 for the inner end 42 of the positive conductive sheet to be fitted into. The limiting structure also includes limiting holes 46 formed on the inner end 42 of the positive conductive sheet. There are at least two limiting holes 46, respectively located on both sides of the through hole 43. The battery cover 2 is provided with corresponding limiting posts 28 that form an axial insertion fit with the limiting holes 46. Through the above-mentioned limiting structure, the battery cover 2 can reliably limit the positive conductive sheet 4, thereby further improving the stability and reliability of the electrical connection.

[0034] A sealing ring 110 is installed on the opening 101 of the battery tube 1, and the sealing ring 110 is clamped and installed between the convex ring 104 and the battery cover 2. By setting the sealing ring 110, the sealing performance of the connection between the battery cover 2 and the battery tube 1 can be effectively improved. At the same time, due to the above-mentioned convex ring 104 structure, the installation of the sealing ring 110 does not require additional slotting.

[0035] A fixing block 6 is provided on the outer circumference of the battery case 1. A housing 7 is mounted on the fixing block 6. Two conductive sleeves 8 are mounted on the upper end of the housing 7. The outer ends of the positive and negative conductive plates are both shaped like inserts and are inserted into the two conductive sleeves 8 respectively. Multiple spring tabs 81 are formed in the middle of each conductive sleeve 8, arching inwards and elastically clamping the positive and negative conductive plates. Each conductive sleeve 8 is provided with an outwardly extending contact tab 82. This arrangement allows the positive and negative conductive plates to better connect to external electrical connectors through the conductive sleeves 8 and the contact tabs 82 after extending outwards. Of course, the outer ends of the positive and negative conductive plates can also be designed as long strips, such as... Figure 10 As shown.

[0036] The upper end of the fixing block 6 is stepped, the conductive sleeve 8 presses against the upper stepped surface 61, and the connecting plug 82 bends downward and extends downward. The upper end 821 of the connecting plug 82 is clamped between the lower stepped surface 62 and the outer shell 7, and the lower end 822 of the connecting plug 82 is clamped between the radial outer end face 63 of the fixing block and the outer shell 7, and extends downward out of the outer shell 7. This arrangement provides a more stable and reliable installation and positioning for the conductive sleeve 8 and the connecting plug 82.

[0037] The outer casing 7 has a downwardly extending, hook-shaped pin 71. This design provides a locking effect after the battery is plugged into an external electrical connector.

Claims

1. A meter battery, comprising a battery casing, a battery cover, a battery, a positive conductive plate, and a negative conductive plate, wherein the battery casing has an opening for inserting or removing the battery, the battery cover is fitted onto the opening of the battery casing and forms a detachable connection with the battery casing, the battery is placed inside the battery casing with the negative terminal of the battery facing the bottom of the battery casing and the positive terminal of the battery facing the opening of the battery casing, the outer ends of both the positive and negative conductive plates extend outside the battery casing, and the inner end of the negative conductive plate is in contact with the negative terminal of the battery, characterized in that: The inner end of the positive conductive sheet is located above the positive terminal of the battery. A through hole is opened on the inner end of the positive conductive sheet, and the through hole is located above the cylindrical connector of the positive terminal of the battery. Multiple clamping pieces are arranged circumferentially on the through hole, extending downward and forming an elastic clamping on the cylindrical connector. A spring is provided between the negative terminal of the battery and the bottom end of the battery casing. Under the action of the spring, the inner end of the positive conductive sheet abuts against the battery cover. A pressing piece is also provided on the through hole at the inner end of the positive conductive sheet, which bends downward and extends elastically against the cylindrical connector.

2. The meter battery according to claim 1, characterized in that: Multiple pressure plates are arranged circumferentially on the through hole, and the pressure plates and the clamping plates are arranged at intervals.

3. The meter battery according to claim 1 or 2, characterized in that: The clamping piece is narrower at the top and wider at the bottom, and the lower end of the clamping piece presses against the positive terminal of the battery. The pressing piece includes a first connecting segment, a second connecting segment and a third connecting segment. The first connecting segment is connected to the through hole and extends inward. The second connecting segment is bent upward and presses against the cylindrical connector. The first connecting segment and the second connecting segment are connected by the third connecting segment, and the third connecting segment is curved.

4. The meter battery according to claim 1 or 2, characterized in that: A raised ring is provided on the inner wall of the battery tube near the opening, and multiple L-shaped insertion interfaces are circumferentially distributed on the raised ring. The vertical ends of the L-shaped insertion interfaces penetrate the raised ring axially upward. A connecting sleeve is provided on the battery cover to form an axial insertion engagement with the raised ring. A protrusion is formed radially outward on the connecting sleeve to form a protrusion that engages with the L-shaped insertion interfaces. When the protrusion moves from the vertical end to the horizontal end of the L-shaped insertion interface, the battery cover and the battery tube form a snap-fit ​​limiting engagement. A first positioning block is formed radially protruding on the opening of the battery tube, and a second positioning block is formed on the battery cover. The positioning block has a positioning socket on the first positioning block and a barb on the second positioning block for hooking and limiting with the positioning socket. When the protrusion moves from the vertical end to the horizontal end of the L-shaped insertion interface, the barb is inserted into the positioning socket. The outer ends of the positive and negative conductive sheets both protrude from the opening of the battery tube. The first positioning block has a first positioning groove for the outer end of the negative conductive sheet to pass through axially and for positioning the negative conductive sheet. The second positioning block has a second positioning groove for axially inserting and engaging with the outer end of the positive conductive sheet.

5. The meter battery according to claim 4, characterized in that: The battery cover is provided with a limiting structure that limits the positive conductive sheet. The limiting structure includes an insert groove formed on the battery cover for the inner end of the positive conductive sheet to be fitted into. The limiting structure also includes a limiting hole formed on the inner end of the positive conductive sheet. There are at least two limiting holes, which are respectively provided on both sides of the through hole. The battery cover is provided with a limiting post that forms an axial insertion fit with the limiting hole.

6. The meter battery according to claim 4, characterized in that: A sealing ring is installed on the opening of the battery tube, and the sealing ring is clamped between the convex ring and the battery cover.

7. The meter battery according to claim 4, characterized in that: A fixing block is provided on the outer circumference of the battery tube. An outer shell is mounted on the fixing block. Two conductive sleeves are installed at the upper end of the outer shell. The outer ends of the positive and negative conductive plates are both set as inserts and are respectively inserted into the two conductive sleeves. Multiple spring pieces are formed in the middle of the conductive sleeves, which arch inward and elastically clamp the positive and negative conductive plates. Each conductive sleeve is provided with an outwardly extending contact plate.

8. The meter battery according to claim 7, characterized in that: The upper end of the fixing block is stepped, the conductive sleeve presses against the upper step surface, the power connector extends downward, and the upper end of the power connector is clamped between the lower step surface and the outer shell, while the lower end of the power connector is clamped between the radial outer end face of the fixing block and the outer shell, and extends downward through the outer shell.

9. The meter battery according to claim 8, characterized in that: The outer casing is provided with pins that extend downwards and are arranged in a barb shape.

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