CN211017304U

CN211017304U - Columnar battery and controller with indicating lamp thereof

Info

Publication number: CN211017304U
Application number: CN202020111085.1U
Authority: CN
Inventors: 李松; 孔祥权; 邓建坤
Original assignee: Shenzhen Maigesong Electrical Technology Co ltd
Current assignee: Megson Hubei Power System Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-07-14
Anticipated expiration: 2030-01-17

Abstract

The present disclosure discloses a cylindrical battery and a controller with an indicator light thereof. The controller comprises a controller shell, a circuit board, an electrode cap, an indicator light and a light guide assembly. The controller shell is internally provided with a cavity, and the surface of the controller shell is provided with an opening penetrating through the cavity. The circuit board is located in the cavity and comprises a first surface and a second surface which are opposite, and components are welded on the second surface. The electrode cap comprises a cylindrical cap body with one open end and the other end closed and a cavity and a brim surrounding the open end of the cap body, the open end face of the positive electrode cap faces the first surface of the circuit board, the brim is attached to the circuit board, and the cap body is exposed out of the controller shell through the opening. The indicating lamp is used for indicating the operating condition, is arranged on the first surface of the circuit board and is positioned in the cavity of the cap body, and a plurality of light holes which are distributed at intervals are arranged on the periphery of the cap body along the electrode cap edge. The light guide assembly is of a sheet annular structure, is provided with a through hole and is sleeved on the cap body through the through hole, and covers the brim and seals the light hole.

Description

Columnar battery and controller with indicating lamp thereof

Technical Field

The present disclosure relates to the field of secondary batteries, and more particularly, to a cylindrical battery and a controller having an indicator light.

Background

Cylindrical batteries, such as No. 5 batteries and No. 7 batteries, are widely used in toys, flashlights, alarm clocks, etc. in daily life. Due to the requirements of energy conservation and environmental protection, most of the batteries are designed into rechargeable and recyclable batteries. For the rechargeable battery, usually will be equipped with corresponding charging seat and charge, generally, will set up corresponding pilot lamp on the charging seat and instruct operating condition, because the volume of battery itself is less, if place the pilot lamp in the battery then must occupy great space, therefore most rechargeable battery itself does not set up corresponding pilot lamp signal now. However, when a plurality of batteries are placed on one charging seat at the same time, it is impossible to determine whether each battery is in good contact or not, and whether the battery can be charged by matching with the charging seat or not.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the working state of the battery cannot be known because the volume of the battery is small and the corresponding indicator lamp cannot be arranged in the related art, the disclosure provides a columnar battery which can indicate the working state of the battery without increasing the volume of the battery and a controller with the indicator lamp.

The present disclosure provides a controller with an indicator light, comprising:

the controller shell is internally provided with a cavity, and the surface of the controller shell is provided with an opening penetrating through the cavity;

the circuit board is positioned in the cavity and comprises a first surface and a second surface which are opposite, and components are welded on the second surface;

an electrode cap comprising: the electrode cap comprises a cylindrical cap body with an opening at one end and a closed cavity at the other end, and a brim surrounding the opening end of the cap body, wherein the opening end face of the electrode cap faces to the first surface of the circuit board, the brim is attached to the circuit board, and the cap body is exposed out of the controller shell through the opening;

the indicating lamp is used for indicating the working state, is arranged on the first surface of the circuit board and is positioned in the cavity of the cap body, and a plurality of light holes which are distributed at intervals are arranged on the electrode cap along the circumference of the cap body; and

the light guide assembly is of a sheet annular structure, is provided with a through hole and is sleeved on the cap body through the through hole, and covers the brim and seals the light holes.

Optionally, the visor is continuous around the cap body.

Optionally, the leaded light subassembly includes the leaded light piece, the leaded light piece is insulating leaded light material, the leaded light piece is including the first surface and the second surface that are parallel to each other and set up relatively, the through-hole link up the first surface with the second surface, the pore wall of through-hole encircles and contacts the periphery of the cap body, the laminating of second surface of leaded light piece the brim of a hat makes the light that the pilot lamp sent is followed through the light trap the radial propagation of leaded light piece the radial periphery of leaded light piece forms annular light emitting area.

Optionally, the hole wall of the through hole of the light guide plate closes the light hole.

Optionally, the light guide assembly further includes a light shielding layer, and the light shielding layer covers or is coated on the light guide sheet.

Optionally, the light-transmitting hole is disposed at a junction of the cap body and the brim and extends from the cap body to the brim, and the hole wall of the through hole and the light-shielding layer close the light-transmitting hole together.

Optionally, the sum of the height of the hole wall of the through hole and the thickness of the light shielding layer is greater than the height of the light transmitting hole.

Optionally, the controller casing includes the shell body, the shell body include cylindric lateral wall and be formed at the limit baffle of lateral wall axial one end, limit baffle's center is seted up the opening, the outer fringe department of the first surface of circuit board is provided with the pad and welds in through the laminating of this pad limit baffle's inner face, the second surface of leaded light piece covers simultaneously the brim of a hat of electrode cap with limit baffle's surface, the leaded light piece by the outer wall of the cap body extend to always with the lateral wall parallel and level of shell body.

Optionally, the controller casing further includes an inner casing, which is disposed in the cavity, and the outer casing, the inner casing and the circuit board are connected by welding.

Optionally, the bottom of the outer shell exceeds the bottom of the inner shell, and the exceeding part forms an annular positioning cylindrical surface structure, or the bottom of the outer shell is retracted to the bottom of the inner shell, and the part of the inner shell exceeding the outer shell forms an annular positioning groove.

Optionally, the electrode cap is a positive electrode cap or a negative electrode cap.

Optionally, an inner electrode is further disposed on the second surface of the circuit board, and the inner electrode is electrically connected to the electrode cap through a component of the circuit board.

The present disclosure provides a cylindrical battery including:

a columnar cell having a positive electrode and a negative electrode; and

the controller with the indicator light is arranged at one end of the positive electrode of the columnar battery cell, the outer shell of the controller is electrically connected with the negative electrode of the columnar battery cell, and the inner electrode of the controller is electrically connected with the positive electrode of the columnar battery cell.

Optionally, the columnar cell is a soft package cell, a negative electrode arranged at one end of the columnar cell is a negative electrode plate, the negative electrode plate extends towards the other end of the columnar cell, the columnar cell is sleeved into a battery outer shell, the negative electrode plate is welded with the battery outer shell, and an outer shell of the controller is connected with the battery outer shell;

and a positive electrode arranged at the other end of the columnar battery cell is a positive electrode plate, and the positive electrode plate is connected with an inner electrode of the controller.

Optionally, the shell of the columnar battery cell is a steel shell, the steel shell of the columnar battery cell is a negative electrode, and the outer shell of the battery controller is connected with the steel shell;

the columnar battery cell is provided with a positive electrode boss, the positive electrode is the positive electrode of the columnar battery cell, and the positive electrode boss is connected with the inner electrode of the controller.

The present disclosure provides a cylindrical battery including:

a columnar cell having a positive electrode and a negative electrode; and

the controller with the indicator light is arranged at one end of the negative electrode of the columnar battery cell, the outer shell of the controller is electrically connected with the positive electrode of the columnar battery cell, and the inner electrode of the controller is electrically connected with the negative electrode of the columnar battery cell.

Optionally, the columnar battery cell is a soft package battery cell, a positive electrode arranged at one end of the columnar battery cell is a positive electrode plate, the positive electrode plate extends towards the other end of the columnar battery cell, the columnar battery cell is sleeved into a battery outer shell, the positive electrode plate is welded with the battery outer shell, and an outer shell of the controller is connected with the battery outer shell;

and the negative electrode arranged at the other end of the columnar battery cell is a negative electrode plate, and the negative electrode plate is connected with the inner electrode of the controller.

Optionally, the shell of the columnar battery cell is an aluminum shell, the aluminum shell of the columnar battery cell is a positive electrode of the columnar battery cell, and the outer shell of the controller is connected with the aluminum shell;

the columnar battery core is provided with a negative electrode boss, the negative electrode boss is a negative electrode of the columnar battery core, and the negative electrode boss is connected with an inner electrode of the battery controller.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the present disclosure provides a controller with an indicator light including a controller housing, a circuit board, an electrode cap, an indicator light, and a light guide assembly. The controller shell is internally provided with a cavity, and the surface of the controller shell is provided with an opening penetrating through the cavity. A circuit board is located within the cavity and includes opposing first and second surfaces. The electrode cap comprises a cylindrical cap body with one open end and the other end closed and a cavity and a brim surrounding the open end of the cap body, the open end face of the positive electrode cap faces the first surface of the circuit board, the brim is attached to the circuit board, and the cap body is exposed out of the controller shell through the opening. The indicating lamp is used for indicating the operating condition, is arranged on the first surface of the circuit board and is positioned in the cavity of the cap body, and a plurality of light holes which are distributed at intervals are arranged on the periphery of the cap body along the electrode cap edge. The light guide assembly is of a sheet annular structure, is provided with a through hole and is sleeved on the cap body through the through hole, and covers the brim and seals the light hole. The pilot lamp sets up in the cavity of the electrode cap body, has saved the installation space of pilot lamp, and the light that sends of pilot lamp simultaneously conducts the outside to the controller through leaded light subassembly, from this, when the battery of this controller of installation charges, light edgewise sends, does not send from the tip of controller, when avoiding the tip to insert the charging seat, and light is sheltered by the charging seat, can't be observed.

The present disclosure provides a cylindrical battery, which includes a cylindrical battery core and the above-mentioned controller with an indicator light. The columnar cell has a positive electrode and a negative electrode. The controller is installed at the one end of column electric core, and the shell body of controller and the positive electrode electric connection of column electric core, the internal electrode of controller and the negative electrode electric connection of column electric core. The inside of this column battery sets up the pilot lamp, makes battery itself can instruct operating condition, and light is sent from the side simultaneously, does not send from the tip of controller, when avoiding the tip to insert the charging seat, and light is sheltered by the charging seat, can't observe. And through the reasonable layout of pilot lamp, saved installation space.

The present disclosure provides a cylindrical battery, which includes a cylindrical battery core and the above-mentioned controller with an indicator light. The columnar cell has a positive electrode and a negative electrode. The controller is installed at one end of the columnar battery cell, the outer shell of the controller is electrically connected with the negative electrode of the columnar battery cell, and the inner electrode of the controller is electrically connected with the positive electrode of the columnar battery cell. The inside of this column battery sets up the pilot lamp, makes battery itself can instruct operating condition, and light is sent from the side simultaneously, does not send from the tip of controller, when avoiding the tip to insert the charging seat, and light is sheltered by the charging seat, can't observe. And through the reasonable layout of pilot lamp, saved installation space.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is an exploded view of a controller with an indicator light applied to a No. 5 battery.

Fig. 2 is a schematic sectional view of the assembled controller with indicator light applied to a No. 5 battery.

Fig. 3 is an exploded view of the electrode cap and circuit board of fig. 1.

Fig. 4 is an exploded view of the inner electrode and circuit board of the controller with indicator light applied to the No. 5 battery.

Fig. 5 is a schematic structural diagram of a controller with an indicator light applied to a No. 5 battery, in which a heat-conducting adhesive layer is poured into an outer shell.

Fig. 6 is an exploded view of a controller with an indicator light applied to a No. 5 battery including a negative electrode cap.

Fig. 7 is a schematic cross-sectional view of fig. 6.

Fig. 8 is an exploded view of the negative electrode cap and circuit board of the controller of fig. 6.

Fig. 9 is a schematic sectional view of the negative electrode cap and the circuit board of fig. 8 after assembly.

Fig. 10 is an exploded view of a controller with an indicator light applied to a No. 7 battery.

Fig. 11 is a schematic sectional view of the assembled controller with indicator light applied to battery No. 7.

Fig. 12 is an exploded schematic view of the electrode cap and circuit board of fig. 10.

Fig. 13 is an exploded view of the internal electrodes and circuit board of the controller with indicator light for use with size 7 battery.

Fig. 14 is an exploded schematic view of a cylindrical battery of the present disclosure.

Fig. 15 is an exploded view of the cylindrical battery with the indicator light controller disposed on the negative terminal of the present disclosure.

Fig. 16 is an exploded schematic view of a pouch cylindrical battery of the present disclosure.

Detailed Description

For further explanation of the principles and construction of the present disclosure, reference will now be made in detail to the preferred embodiments of the present disclosure, which are illustrated in the accompanying drawings.

The present disclosure relates to a controller with an indicator lamp, which is applied to a secondary battery for controlling functions of charging and/or discharging the secondary battery.

The controller with the indicator light comprises a controller shell, a circuit board, an electrode cap, the indicator light and a light guide assembly. The controller shell is internally provided with a cavity, the surface of the controller shell is provided with an opening penetrating through the cavity, namely, the two end faces of the cavity are provided with openings. A circuit board is located within the cavity and includes opposing first and second surfaces. The electrode cap comprises a cylindrical cap body with one open end and the other end closed and a cavity and a brim surrounding the open end of the cap body, the open end face of the electrode cap faces the first surface of the circuit board, the brim is attached to the circuit board, and the cap body is exposed out of the controller shell through the opening. The indicating lamp is used for indicating the operating condition, is arranged on the first surface of the circuit board and is positioned in the cavity of the cap body, and a plurality of light holes which are distributed at intervals are arranged on the periphery of the cap body along the electrode cap edge. The light guide assembly is of a sheet annular structure, is provided with a through hole and is sleeved on the cap body through the through hole, and covers the brim and seals the light hole. The pilot lamp sets up in the cavity of the cap body of electrode cap, has saved the installation space of pilot lamp, and the light that sends of pilot lamp simultaneously conducts the outside to the controller through leaded light subassembly, from this, when the battery of this controller of installation charges, light edgewise sends, does not send from the tip of controller, when avoiding the tip to insert the charging seat, and light is sheltered by the charging seat, can't be observed.

The controller can be applied to a No. 5 battery, a No. 7 battery and other types of batteries. The following describes the technical solution of the present disclosure by taking a controller applied to battery No. 5 and battery No. 7 as an example.

The present disclosure provides a controller with an indicator light, which includes a controller housing, a circuit board, an electrode cap, an indicator light, and a light guide assembly, wherein the controller housing may be a double housing or a single housing. The technical scheme of the present disclosure is described below by taking a double shell as an example. As shown in fig. 1 to 3, fig. 1 is an exploded view of a controller with an indicator lamp applied to a No. 5 battery, fig. 2 is a sectional view of the controller with an indicator lamp applied to a No. 5 battery after assembly, and fig. 3 is an exploded view of an electrode cap and a circuit board of fig. 1, and the controller with an indicator lamp 10 includes a controller housing, a circuit board 13, an electrode cap 15, an indicator lamp 12, and a light guide assembly 14. Wherein the controller housing comprises an outer housing 11 and an inner housing 18.

The outer casing 11 is cylindrical and made of metal. The outer case 11 includes a cylindrical outer side wall 111 and a limit stopper 112 forming an axial end of the outer side wall 111 and perpendicular to the outer side wall 111. The limit stop 112 is disposed around the inner circumference of the outer sidewall 111. The inner diameter of the limiting baffle 112 is smaller than the outer diameter of the circuit board 13, so that the circuit board 13 can be limited inside the outer casing 11 to prevent exposure. The other axial end of the outer shell 11 opposite to the limit baffle 112 is provided with an opening. A cavity is formed inside the outer shell 11, a through hole is formed in the limit baffle 112, and the cavity is communicated with the opening at the other end of the outer shell 11 and the through hole of the limit baffle 112.

The other end of the outer housing 11 opposite to the limit baffle 112 is provided with a plurality of pressure relief holes 113, more specifically, the plurality of pressure relief holes 113 are formed at the edge of the bottom of the outer sidewall 111 of the outer housing 11, and the plurality of pressure relief holes 113 are distributed at intervals along the bottom periphery of the outer sidewall 111. The pressure relief holes 113 are used for discharging gas generated by the battery cell of the No. 5 battery so as to reduce the internal pressure of the battery.

Optionally, the pressure relief holes 113 are disposed at equal intervals along the periphery of the outer housing 11.

Alternatively, the pressure relief holes 113 may be disposed at unequal intervals along the periphery of the outer housing 11.

Alternatively, the pressure relief hole 113 may be a rectangular notch or an arc-shaped notch.

The two pressure relief holes 113 are formed with protrusions 115 connected to the outer casing of the cell by spot welding, and the outer edges of the protrusions 115 are in contact with the outer casing of the cell or the outer casing of the battery.

Optionally, the pressure relief holes may be circular holes disposed on the outer sidewall 111 of the outer casing 11, that is, the circular holes are not disposed on the bottom edge of the outer sidewall 11 but disposed above the bottom edge, and the circular holes are distributed at intervals along the circumferential direction surrounded by the outer sidewall 111.

The circuit board 13 may have a disk shape with opposing first and

second surfaces

131, 132. The first surface 131 is provided with an electrode cap 15. The second surface 132 has disposed thereon circuit components, which may be components that include charge and/or discharge control.

A ring of housing pads 1311 is further disposed at the edge of the first surface 131, and the housing pads 1311 are welded to the inner surface of the limit stop 112. The welding mode can be a tin melting welding mode, an electric iron tin melting welding mode, a hot air tin melting welding mode after tin paste spraying, a laser tin melting welding mode after tin paste spraying and the like.

The circuit board 13 is further provided with a plurality of electrode cap pads 1312 on the first surface 131, and solder such as solder paste may be applied to the electrode cap pads 1312 for soldering the electrode caps 15.

A channel 1313 is formed between the

electrode cap pads

1312 and 1312, and the channel 1313 separates the adjacent two electrode cap pads 1312. The channel 1313 functions to, on the one hand, isolate the solder applied to the cap pad 1312 from focusing adjacent solders together, thereby preventing stress concentration, dispersing stress, and preventing the electrode cap 15 from drifting during soldering; on the other hand, a circulation outlet is provided for the gas generated during the heating process of the flux, and the gas is discharged through the channel 1313.

The electrode cap pads 1312 may have a fan shape. The cap pads 1312 and the channel 1313 together form an annular region, and the cap pads 1312 are scattered with respect to the center of the annular region. The electrode cap 15 covers the annular region. The center of the circuit board 13 coincides with the center of the annular region so that the electrode cap 15 and the circuit board 13 are concentrically and coaxially disposed. The concentric coaxiality means that the central axis of the electrode cap 15 in the axial direction coincides with the central axis of the circuit board 13 in the axial direction.

The electrode cap pads 1312 are designed in a divided structure and have isolated channels 1313, so that when the electrode caps 15 are placed on the electrode cap pads 1312 in a patch manner and pass through a reflow soldering machine, gas volatilized from flux in solder paste can be diffused out through the channels 1313. If the electrode cap pads 1312 are arranged in a circular structure without partitions and have no isolated channels, the electrode cap 15 is easily pushed open when the flux of the solder paste on the electrode cap pads 1312 volatilizes, and the electrode cap 15 is inclined. Meanwhile, compared with a whole pad without partition, in the welding process of the circuit board 13 through the reflow welding machine, the partition structure of the pad can control the stress of the surface of the molten solder paste on each electrode cap pad within a certain range, and the drifting condition caused when the circuit board 13 and the electrode cap 15 pass through the reflow welding machine can be effectively inhibited. If the solder paste is not uniformly applied, excess solder paste on the cap pad 1312 can be drained to the channel 1313, thereby ensuring that the electrode cap 15 will not drift during the attachment process.

The electrode cap 15 includes a cylindrical cap body 151 having one end open and the other end closed and having a cavity, and a visor 152 surrounding the open end of the cap body 151. The cap 151 is exposed to the outer shell 11 through the opening of the outer shell 11. The open end surface of the electrode cap 15 faces the first surface 131 of the circuit board 13, and the visor 152 is attached to the circuit board 13. The inner diameter of the annular region formed by the electrode cap pad 1312 and the channel 1313 is smaller than the inner diameter of the cap visor 152, and when the solder paste melts, the solder paste extends upward on the inner wall of the cap body 151 along the cap visor 152, thereby enhancing the welding strength of the cap visor 152 and the electrode cap pad 1312.

The indicator lamp 12 is disposed at a middle position of an annular region formed by the electrode cap pad 1312 and the channel 1313, and the indicator lamp 12 is located in a cavity of the cap body 151.

The electrode cap 15 has a plurality of light-transmitting holes 153 spaced apart from each other along a circumference of the cap body 151.

The light holes 153 are disposed at the junction between the cap body 151 and the visor 152, and extend from the cap body 151 to the visor 152. More specifically, the light holes 153 extend from the sidewall of the bottom of the cap body 151 near the visor 152 to the visor 152, but the light holes 153 do not penetrate the visor 151, so that the visor 152 forms a continuous visor around the cap body 151 at the periphery of the light holes 153. Thus, the brim 151 is reserved with a sufficient welding area to be welded to the electrode cap pad 1312, thereby ensuring the welding strength between the brim 151 and the electrode cap pad 1312 and also ensuring the structural strength of the electrode cap 15 itself.

The light transmission holes 153 penetrate from the bottom surface of the visor 151 to the top surface of the visor. The light emitted from the indicator light 12 may be emitted from the bottom surface to the top surface of the visor 151.

The width of the light holes 153 may be determined according to the diameter of the cap 151.

The light holes 153 are disposed at equal intervals along the outer circumference of the cap body 151.

Optionally, the light holes 153 are arranged at unequal intervals along the periphery of the cap body 151.

The light guide assembly 14 is a sheet-shaped ring structure, which has a through hole and is sleeved on the cap body 151 through the through hole, and the light guide assembly 14 covers the brim 152 and closes the light hole 153.

The light guide assembly 14 includes a light guide plate 141, and the light guide plate 141 is made of an insulating light guide material. Light guide 141 includes a first surface 1411 and a second surface 1412 that are parallel to and disposed opposite each other. The through hole penetrates through the first surface 1411 and the second surface 1412, the hole wall of the through hole surrounds and contacts the periphery of the cap body 151, and the second surface 1412 of the light guide sheet 141 is attached to the brim 152, so that light emitted by the indicator light 12 passes through the light transmission hole 153 and then propagates along the radial direction of the light guide sheet 141, and an annular light emitting surface is formed on the radial periphery of the light guide sheet 141.

The second surface 1412 of the light guide 141 covers both the visor 152 of the electrode cap 15 and the outer surface of the limit stop 112. The light guiding plate 141 extends from the outer wall of the cap 151 to be flush with the outer sidewall of the outer shell 11, and the annular light emitting surface is flush with the outer sidewall of the outer shell 11.

Further, the light guide assembly 14 further includes a light shielding layer 142, and the light shielding layer 142 covers or is coated on the light guide plate 141. The light shielding layer 142 shields the light emitted upward from the light guide plate 141, and guides the light to the radial direction.

The light shielding layer 142 and the light guiding plate 141 close the light holes 153, so as to prevent external dust or other substances from entering the cap body 11. More specifically, as shown in fig. 2, the hole wall of the light guide plate 141 and the light shielding layer 142 together close the light transmission hole 153. That is, the sum h1 of the height of the hole wall of the through hole of the light guide plate 141 and the thickness of the light shielding layer 14 is greater than the height h2 of the light transmission hole 153. The height of the light-transmitting hole 153 is a height extending from the top surface of the visor 152 to the sidewall of the cap body 151.

Optionally, the shielding layer of the light guide assembly 14 may be omitted, in which case, the light guide plate 141 closes the light holes, that is, the thickness of the light guide plate 141 is greater than the height of the light holes 153, and the hole walls of the through holes of the light guide plate 141 close the light holes 153.

Further, the controller 10 further includes an inner housing 18 disposed within the cavity of the outer housing 11. The inner housing 18, the circuit board 13 and the outer housing 11 are soldered to each other. The welding mode of the three parts can be as follows: the inner case 18 and the circuit board 13 are first connected by solder reflow, and the inner case 18 and the outer case 11 are then connected by laser soldering.

The inner housing 18 is made of metal and is accommodated in the cavity of the outer housing 11. The inner housing 18 includes an annular inner side wall 182 and a support edge portion 181 connected to the inner side wall 182 for supporting the circuit board 13. The inner side wall 182 is formed in a cylindrical shape. The support edge portion 181 is bent and extended toward the central axis direction of the inner sidewall 182 to form a support surface for supporting the circuit board 13.

The supporting edge portion 181 includes a plurality of limiting bent legs 1811 formed at the top end of the inner sidewall 182 and distributed at intervals along the circumference of the inner sidewall 182, each limiting bent leg 1811 extends in a bending manner toward the central axis of the inner sidewall 182 to form a supporting surface for supporting the circuit board 13, and an arc-shaped chamfer, i.e., an arc-shaped transition portion 183, is formed between each limiting bent leg 1811 and the inner sidewall 182.

An edge position of the second surface 132 of the circuit board 13 is provided with an inner case land 1321, and the inner case land 1321 is solder-connected to the support edge portion 181 of the inner case 18. First gaps 116 for depositing solder paste are formed between the transition portions 183 and the outer side walls 111 and between the transition portions and the inner housing lands 1321 of the circuit board 13. A second gap 117 in which solder paste is deposited is formed between the circuit board 13 and the outer wall 111 of the outer case 11, and the first gap 116 and the second gap 117 communicate with each other. When the circuit board 13, the inner case 18, and the outer case 11 are soldered, for example, by reflow soldering, the solder paste applied to the outer case land 1311 and the inner case land 1321 of the circuit board 13 flows into the first gap 116 and the second gap 117 during heating, and fills the first gap 116 and the second gap 117.

In addition, in order to facilitate the installation between the inner housing 18 and the outer housing 11, a gap is also reserved between the outer surface of the inner side wall of the inner housing 18 and the inner surface of the outer side wall of the outer housing 11, and a part of the solder paste on the outer housing pad 1311 and the inner housing pad 1321 flows into the gap to fill the gap.

After the solder paste is heated and cured, the outer shell lands 1311 are bonded to the retainer plate 112 of the outer shell 11, and the inner shell lands 1321 are bonded to the support surface of the support edge 181 of the inner shell 18. The solder paste is cured and supports the circuit board together with the supporting edge portion 181. since the solder paste has a good shear resistance, the supporting edge portion 181 and the solder paste can provide a firm support for the circuit board 13 after being bonded.

A groove for accumulating solder paste is formed between the two limiting bent legs 1811 of the supporting edge part 181, and when the solder paste is heated and solidified, the solder paste on the outer shell bonding pad 1311 and the inner shell bonding pad 1321 is also squeezed into the groove. In this manner, the connection between the outer housing 11, the circuit board 13, and the inner housing 18 is further reinforced.

In the present disclosure, instead of the solder paste, a solder wire or a solder ball may be used, and the gap or the groove may be filled with a molten fluid solder.

Optionally, the limiting curved feet 1811 of the inner shell 18 are disposed at equal intervals along the circular periphery surrounded by the inner side wall 182.

Alternatively, the limiting curved feet 1811 of the inner shell 18 may be arranged at unequal intervals.

The bottom of the outer housing 11 extends beyond the bottom of the inner housing 18 to form a positioning cylindrical structure 114 for positioning the cylindrical cells. The bottom edge of the inner case 18 is higher than the bottom surface of the pressure relief hole 113 so that the inner case 18 does not shield the pressure relief hole 113.

Referring to fig. 4, an exploded view of the internal electrode and the circuit board of the controller with indicator light applied to the No. 5 battery is shown, the second surface 132 of the circuit board 13 is further provided with an internal electrode pad 1322 for welding the internal electrode 16, the internal electrode pad 1322 is further provided with an internal electrode positioning hole 134, the positioning pin 163 of the internal electrode 16 is inserted into the internal electrode positioning hole 134, and the circumferential positioning of the internal electrode 16 on the circuit board 13 is ensured, the internal electrode 16 comprises an electrode bar 161 and an internal electrode circuit board soldering land 164, the internal electrode circuit board soldering land 164 and the electrode bar 161 form an L type, the internal electrode circuit board soldering land 164 has a triangular shape with a through hole therein, the internal electrode circuit board soldering land 164 abuts against the internal electrode 1322 on the second surface 132 of the circuit board 13, and the axial positioning of the internal electrode 16 on the circuit board 13 is ensured, the internal electrode soldering land 164 increases the contact area of the internal electrode 16 and the circuit board 13, and facilitates the passage of a large current, and, when a current passes through the internal electrode pad 16, the heat generation amount at the connection portion of the internal electrode 16 and.

The inner electrode 16 is further provided with a bending positioning groove 162, and the bending positioning groove 162 can position a bending position, and can reduce stress concentration, so that the inner electrode 16 is folded at the bending positioning groove 162, and the folding consistency of the inner electrode 16 is ensured.

The movable end 167 of the inner electrode 16 is provided with a resistance welding resistance flow groove 165, so that the current path passing through when the inner electrode 16 and the electrode boss of the cylindrical battery cell are subjected to resistance welding is increased, and the welding strength is increased. The movable end 167 of the inner electrode 16 may be a bar.

The inner electrode 16 is electrically connected to the electrode cap 15 through a charging and/or discharging control circuit of the circuit board 13.

The cavity formed by the second surface of the circuit board 13 and the outer housing 11 is filled with a heat-conducting glue, the heat-conducting glue covers the components on the second surface of the circuit board 13, and a layer 19 of heat-conducting glue is formed, as shown in fig. 5. The movable end 167 of the inner electrode 16 and most of the electrode bars are exposed to the layer of thermally conductive adhesive 19. In addition, glue injection holes and exhaust overflow holes do not need to be formed in the circuit board 13, and glue injection is not needed in an inner cavity formed by the circuit board 13 and the electrode cap 15.

An inner electrode insulation sheet 17 covers the thermal conductive adhesive layer 19, the inner electrode insulation sheet 17 has a gap, one end of the inner electrode 16 is welded on the second surface 132 of the circuit board 13, and the other end passes through the gap to be overlapped on the inner electrode insulation sheet 17, so that the other end of the inner electrode 16 is insulated from the components on the circuit board 13. The inner electrode 16 is bent at the notch of the inner electrode insulation sheet 17 for the first time, and is bent at the bending positioning groove 162 for the second time.

The electrode cap 15 may be a positive electrode cap, as shown in fig. 1 to 3, in which the indicator lamp 12 is placed.

In one embodiment, the electrode cap may be a negative electrode cap with the indicator light disposed within the negative electrode cap. Fig. 6 is an exploded view of a controller with an indicator lamp applied to a No. 5 battery including a negative electrode cap, as shown in fig. 6 and 7, and fig. 7 is a schematic sectional view of fig. 6. The controller with indicator 10b includes an outer case 11b, a circuit board 13b, an inner case 18b, an inner electrode 16b, a light guide member 14b, a negative electrode cap 15b, and an indicator 12b disposed inside the negative electrode cap 15 b. In this embodiment, the structural shapes of the outer housing 11b, the inner housing 18b, the inner electrode 16b, and the light guide assembly 14b included in the controller 10b may be the structural shapes of the outer housing 11, the inner housing 18, the inner electrode 16, and the light guide assembly 14 of the controller 10 in the previous embodiment.

The electrode cap pads of the negative electrode cap 15b and the circuit board 13b are different from the electrode cap 15 and the circuit board 13 in the previous embodiment. Specifically, as shown in fig. 8 and 9, fig. 8 is an exploded schematic view of the negative electrode cap and the circuit board of the controller in fig. 6, fig. 9 is a cross-sectional schematic view of the negative electrode cap and the circuit board in fig. 8 after being assembled, and the negative electrode cap 15b includes a cylindrical cap body 151b having one end open and the other end closed and having a cavity, and a brim 152b surrounding the open end of the cap body 151 b. The cap 151b is exposed out of the outer shell 11b through the opening of the outer shell 11 b. The open end surface of the negative electrode cap 15b faces the first surface 131b of the circuit board 13b, and the visor 152b is attached to the circuit board 13 b.

The negative electrode cap 15b is provided with a plurality of light-transmitting holes 153b spaced apart from each other along a circumference of the cap body 151 b.

The light holes 153b are disposed at the boundary between the cap body 151b and the visor 152b, and extend from the cap body 151b to the visor 152 b. More specifically, the light holes 153b extend from the sidewall of the bottom of the cap body 151b near the visor 152b to the visor 152b, but the light holes 153b do not penetrate the visor 151b, so that the visor 152b forms a continuous visor around the cap body 151b at the periphery of the light holes 153 b. Thus, the brim 151b is reserved with a sufficient welding area to be welded to the electrode cap pad 1312b, and the welding strength between the brim 151b and the electrode cap pad 1312 is ensured.

The light transmission hole 153b penetrates from the bottom surface of the visor 151b to the top surface of the visor. The light emitted from the indicator light 12b may be emitted from the bottom surface to the top surface of the visor 151 b.

The light holes 153b are elongated, and the width of the light holes 153b is increased, so that more light can be emitted from the light holes 153 b.

The light holes 153b are disposed at equal intervals along the outer circumference of the cap body 151 b.

Optionally, the light holes 153b are disposed at unequal intervals along the outer circumference of the cap body 151 b.

The height of the negative electrode cap 15b is smaller than that of the positive electrode cap, and the area ratio of the cap body 151b of the negative electrode cap 15b to the circuit board 13b is larger than that of the positive electrode cap. The width of the visor of the negative electrode cap 15b is smaller than the width of the visor of the positive electrode cap. As such, the electrode cap pads 1312b of the circuit board 13b are disposed close to the case pads 1311b of the circuit board 13 b. The electrode cap pads 1312b have a bar shape. The electrode cap pads 1312b and the channel 1313 form an annular region having the indicator lamp 12b disposed at the center thereof.

In an embodiment, the controller may be applied to a No. 7 battery, as shown in fig. 10 to 12, fig. 10 is an exploded view of the controller with an indicator light applied to the No. 7 battery, fig. 11 is an assembled cross-sectional view of the controller with an indicator light applied to the No. 7 battery, and fig. 12 is an exploded view of the electrode cap and the circuit board in fig. 10, and the controller with an indicator light 10c includes a controller housing, a circuit board 13c, an electrode cap 15c, an indicator light 12c, and a light guide assembly 14 c. Wherein the controller housing comprises an outer housing 11c and an inner housing 16 c.

The outer case 11c is cylindrical and made of metal. The outer case 11c includes a cylindrical outer side wall 111c and a limit stopper 112c forming one axial end of the outer side wall and perpendicular to the outer side wall. The limit stop 112c is disposed around the inner circumference of the outer sidewall 111 c. The inner diameter of the limiting baffle 112c is smaller than the outer diameter of the circuit board 13c, so that the circuit board 13c can be limited inside the outer shell 11c to prevent exposure. The other axial end of the outer shell 11c opposite to the limit baffle 112c is provided with an opening. A cavity is formed inside the outer shell 11c, a through hole is formed in the limit baffle 112c, and the cavity is communicated with the opening at the other end of the outer shell 11c and the through hole of the limit baffle 112 c.

The circuit board 13c may have a disk shape having a first surface 131c and a second surface 132c opposite to each other. The first surface 131c is provided with an electrode cap 15 c. The second surface 132c has disposed thereon circuit components, which may be components that include charge and/or discharge control.

A ring of housing pads 1311c is further disposed at the edge of the first surface 131c, and the housing pads 1311c are welded to the inner surface of the limit stop 112 c. The welding mode can be a tin melting welding mode, an electric iron tin melting welding mode, a hot air tin melting welding mode after tin paste spraying, a laser tin melting welding mode after tin paste spraying and the like.

The circuit board 13c is further provided with a plurality of electrode cap pads 1312c on the first surface 131c, and solder such as solder paste may be applied to the electrode cap pads 1312c for soldering the electrode caps 15 c.

A channel 1313c is formed between the electrode cap pad 1312c and the electrode cap pad 1312c, and the channel 1313c separates the adjacent two electrode cap pads 1312 c. The channel 1313c functions to, on the one hand, isolate the solder applied to the pad of the electrode cap, and to prevent adjacent solders from focusing together, thereby preventing stress concentration, dispersing stress, and preventing the electrode cap 15c from drifting during soldering; on the other hand, a circulation outlet is provided for the gas generated during the heating of the flux, and the gas is discharged through the channel 1313 c.

The electrode cap pads 1312c may have a fan shape. The cap pads 1312c and the vias 1313c together form an annular region, and the cap pads 1312c are scattered with respect to the center of the annular region. The electrode cap 15c covers the annular region. The center of the circuit board 13c coincides with the center of the annular region, so that the electrode cap 15c and the circuit board 13c are concentrically and coaxially disposed. The concentric coaxiality means that the center axis of the electrode cap 15c in the axial direction coincides with the center axis of the circuit board 13c in the axial direction.

The inside or edge of the electrode cap pad 1312c is also provided with an escape groove that escapes the via 1314c to prevent the via 11314c from being blocked by solder paste. In this manner, the electrode cap pad 1312c provided with the escape groove has a fan shape having an irregular shape.

The electrode cap pads 1312c are designed in a divided structure having isolated channels 1313c, so that when the electrode caps 15c are placed on the electrode cap pads 1312c in a patch manner and pass through a reflow soldering machine, gas volatilized from flux in solder paste can be diffused out through the channels 1313 c. If the electrode cap pads 1312c are arranged in a circular structure without partitions and have no isolated channels, the electrode cap 15c is easily pushed open when the flux of the solder paste on the electrode cap pads 1312c volatilizes, and the electrode cap 15c is inclined. Meanwhile, compared with a whole pad without partition, in the welding process of the circuit board 13c through the reflow welding machine, the partition structure of the pad can control the stress of the surface of the molten solder paste on each electrode cap pad within a certain range, and the drifting condition caused when the circuit board 13c and the electrode cap 15c pass through the reflow welding machine can be effectively inhibited. If the solder paste is not uniformly applied, excess solder paste on the cap pad 1312c may be drained to the channel 1313c to ensure that the cap 15c does not drift during the attachment process.

The electrode cap 15c includes a cylindrical cap body 151c having one end open and the other end closed and having a cavity, and a visor 152c surrounding the open end of the cap body 151 c. The cap 151c is exposed out of the outer shell 11c through the opening of the outer shell 11 c. The open end surface of the electrode cap 15c faces the first surface 131c of the circuit board 13c, and the visor 152c is attached to the circuit board 13 c. The inner diameter of the annular region formed by the electrode cap pad 1312c and the channel 1313c is smaller than that of the cap bill 152c, and when the solder paste is melted, the solder paste extends upward on the inner wall of the cap body 151c along the cap bill 152c, enhancing the welding strength of the cap bill 152c and the electrode cap pad 1312 c.

In other embodiments, the inner housing 12 may be eliminated and the circuit board 13 may be directly fixed to the inner cavity of the outer housing 11 by soldering.

An indicator light 12c is disposed at a middle position of an annular region formed by the electrode cap pad 1312c and the channel 1313c, and the indicator light 12c is located inside the cap body 151 c.

The electrode cap 15c has a plurality of light-transmitting holes 153c spaced apart from each other along a circumference of the cap body 151 c.

The light holes 153c are disposed at the junction between the cap body 151c and the visor 152c, and extend from the cap body 151c to the visor 152 c. More specifically, the light holes 153c extend from the sidewall of the bottom of the cap body 151c near the visor 152c to the visor 152c, but the light holes 153c do not penetrate the visor 151c, so that the visor 152c forms a continuous visor around the cap body 151c at the periphery of the light holes 153 c. Thus, a sufficient welding area is reserved in the cap visor 151c to be welded to the electrode cap pad 1312c, and the welding strength between the cap visor 151c and the electrode cap pad 1312c is ensured.

The light transmission hole 153c has a height that extends from the bottom surface of the visor 151c to the top surface of the visor. The light emitted from the indicator light 12c may be emitted from the bottom surface to the top surface of the visor 151 c.

The width of the light holes 153c may be determined according to the diameter of the cap body 151 c.

The light holes 153c are disposed at equal intervals along the outer circumference of the cap body 151 c.

Optionally, the light holes 153c are disposed at unequal intervals along the outer circumference of the cap body 151 c.

The light guide assembly 14c is a sheet-shaped ring structure, which is provided with a through hole and is sleeved on the cap body 151c through the through hole, and the light guide assembly 14c covers the brim 152c and closes the light hole 153 c.

The light guide assembly 14c includes a light guide plate 141c, and the light guide plate 141c is made of an insulating light guide material. Light guide 141c includes a first surface 1411c and a second surface 1412c that are parallel to and disposed opposite each other. The through hole penetrates through the first surface 1411c and the second surface 1412c, the hole wall of the through hole surrounds and contacts the periphery of the cap body 151c, and the second surface 1412c of the light guide sheet 141c is attached to the brim 152c, so that light emitted by the indicator light 12c is transmitted along the radial direction of the light guide sheet 141c through the light transmitting hole, and an annular light emitting surface is formed on the radial periphery of the light guide sheet 141 c.

The second surface 1412c of the light guide plate 141c covers both the visor 152c of the electrode cap 15c and the outer surfaces of the limit stop 112 c. The light guide plate 141c extends from the outer wall of the cap 151c to be flush with the outer sidewall of the outer housing 11c, and the annular light emitting surface is flush with the outer sidewall of the outer housing 11 c.

Further, the light guide component 14c further includes a light shielding layer 142c, and the light shielding layer 142c covers or is coated on the light guide plate 141 c. The light shielding layer 142c shields the light emitted upward by the light guide plate 141 c.

The light shielding layer 142c and the light guide plate 141c close the light holes 153c to prevent external dust or other substances from entering the cap body 11 c.

Further, the controller 10c further includes an inner housing 18c disposed within the cavity of the outer housing 11 c. The inner housing 18c, the circuit board 13c, and the outer housing 11c are soldered to each other. The welding mode of the three parts can be as follows: the inner case 18c and the circuit board 13c are first connected by solder reflow, and the inner case 18c and the outer case 11c are then connected by laser soldering.

The inner housing 18c is made of metal and is accommodated in the cavity of the outer housing 11 c. The inner housing 18c includes an annular inner sidewall 182c and a support edge portion 181c connected to the inner sidewall 182c for supporting the circuit board 13 c. The inner wall 182c is formed in a cylindrical shape. The support edge portion 181c extends in a curved manner in the central axis direction of the inner wall 182c to form a support surface for supporting the circuit board 13 c.

The supporting edge portion 181c includes a plurality of limiting bent legs 1811c formed at the top end of the inner side wall 182c and distributed at intervals along the circumference of the inner side wall 182, and each limiting bent leg 1811c extends in a bending manner towards the central axis of the inner side wall 182c to form a supporting surface for supporting the circuit board 13 c.

The limiting curved legs 1811c are disposed along the periphery of the inner sidewall 182c at unequal intervals. The number of the limiting beads 1811c may be determined according to the diameter of the inner housing 18c, for example, the number of the limiting beads 1811c may be 5. The height of the inner side wall 182c may be appropriately changed according to the battery model.

An arc chamfer is formed between each limit bent leg 1811c and the inner side wall 182c, i.e. an arc transition part is formed.

The bottom of the outer shell 11c is retracted into the bottom of the inner shell 18c to form a positioning groove for positioning the cylindrical battery cell. In this case, no relief hole is formed in the outer case 11 c.

Fig. 13 is an exploded view of the inner electrode and circuit board of the controller with indicator light for the No. 7 battery. The second surface 132c of the circuit board 13c is further provided with an inner electrode pad 1322c for soldering the inner electrode 16c, the inner electrode pad 1322c is further provided with an inner electrode positioning hole 134c, and the positioning pin 163c of the inner electrode 16 is inserted into the inner electrode positioning hole 134c, so that the circumferential positioning of the inner electrode 16c on the circuit board 13c is ensured. The inner electrode 16c includes a rounded movable end 167c and an inner electrode circuit board solder pad 164 c. The circular movable end 167c can increase the contact area of the inner electrode with the electrode boss of the cylindrical cell. The electrode contact pads 164c abut the inner electrode pads 1322c on the second surface of the circuit board 13c to ensure axial positioning of the inner electrodes 16c on the circuit board 13 c. The inner-electrode circuit-board soldering land 164c increases the contact area of the inner electrode 16c with the circuit board 13c, facilitating passage of a larger current. Meanwhile, when a current is passed through the internal electrode 16c, the amount of heat generation at the connection portion of the internal electrode 16c and the circuit board 13c can be reduced.

The inner electrode 16c is electrically connected to the electrode cap 15c through a charge and/or discharge control circuit of the circuit board 13 c.

The controller 10c further includes an inner electrode insulation sheet 17c, the inner electrode insulation sheet 17c has a gap, one end of the inner electrode 16c is welded to the second surface 132c of the circuit board 13c, and the other end of the inner electrode passes through the gap to be placed on the inner electrode insulation sheet 17c, so that the other end of the inner electrode 16c is insulated from the components on the circuit board 13 c. The inner electrode 16c is bent once at the notch of the inner electrode insulation sheet 17 c.

In this embodiment, the electrode cap 15c is a positive electrode cap, and the indicator lamp 12c is placed in the positive electrode cap as shown in fig. 10 to 12.

In one embodiment, an electrode cap may be provided at the negative electrode cap of the No. 7 battery, and an indicator lamp is placed inside the negative electrode cap.

The present disclosure further provides a cylindrical battery 100, as shown in fig. 14, fig. 14 is an exploded schematic view of the cylindrical battery 100 of the present disclosure, and the cylindrical battery 100 includes the controller 10 with the indicator light and the cylindrical battery core 20. The electrode cap 15 of the controller 10 is a positive electrode cap. The columnar cell 20 may be a lithium ion cell, and the inside thereof is filled with an electrolyte. The columnar cell 20 has a positive electrode and a negative electrode.

The outer casing 24 of the cylindrical battery cell 20 is a steel casing, and the steel casing is a negative electrode of the cylindrical battery cell 20. The top end of the cylindrical battery cell 20 is provided with a positive electrode boss 21, and the positive electrode boss 21 is connected with the positive electrode of the cylindrical battery cell 20. The periphery of the positive electrode boss 21 of the columnar battery cell 20 is provided with a battery cell insulating sheet 23, and the battery cell insulating sheet 23 is annular and used for isolating the contact between the positive electrode boss 21 and the shell 24 and avoiding short circuit.

In addition, a cell pressure relief hole 22 is further formed in the side wall of the positive electrode boss 21.

The controller 10 is disposed at one end of the cylindrical cell 20 where a positive electrode boss 21 is disposed, the positive electrode boss 21 being a positive electrode of the cylindrical cell 20. The internal electrode of the controller 10 is electrically connected to the positive electrode boss 21 of the cylindrical battery cell 20, so that the internal electrode of the controller 10 is electrically connected to the positive electrode of the cylindrical battery cell 20. The outer casing 11 of the controller 10 is connected to the outer casing 24 of the cylindrical battery cell 20, so that the outer casing 11 of the controller 10 is electrically connected to the negative electrode of the cylindrical battery cell 20.

The pressure relief hole 113 on the outer periphery of the outer case 11 of the controller 10 communicates with the cell pressure relief hole 22 to discharge gas generated from the columnar cell 20. When the columnar battery cell 20 is combined with the controller 10, the rounded corner of the steel shell of the columnar battery cell 20 abuts against the positioning cylindrical surface structure of the outer shell 11 of the controller 10.

The present disclosure further provides a cylindrical battery 100b, as shown in fig. 15, fig. 15 is an exploded schematic view of the cylindrical battery with the controller with indicator light of the present disclosure disposed at the negative terminal, and the present disclosure provides a cylindrical battery 100b, where the cylindrical battery 100b includes the controller with indicator light 10b and the cylindrical battery core 20 b. The electrode cap 15b of the controller 10b is a negative electrode cap. The columnar cell 20b may be a lithium ion cell, and the inside thereof is filled with an electrolyte. The columnar cell 20b has a positive electrode and a negative electrode.

The housing 24b of the cylindrical battery cell 20b is an aluminum case, and the aluminum case is a positive electrode of the cylindrical battery cell 20 b. The top end of the columnar cell 20b is provided with a negative electrode boss 21b, and the negative electrode boss 21 is a negative electrode of the columnar cell 20 b. The periphery of the negative electrode boss 21 of the columnar cell 20b is provided with a cell insulation sheet 23b, and the cell insulation sheet 23b is annular and used for isolating the contact between the negative electrode boss 21b and the shell 24b and avoiding short circuit.

In addition, a cell pressure relief hole 22b is further formed in the side wall of the negative electrode boss 21 b.

The controller 10b is disposed at one end (i.e., a negative end) of the columnar cell 20b, where the negative electrode boss 21b is disposed, and an inner electrode of the controller 10b is electrically connected to the negative electrode boss 21b of the columnar cell 20b, so that the inner electrode of the controller 10 is electrically connected to the negative electrode of the columnar cell 20 b. The outer casing 11b of the controller 10b is connected to the outer casing 24b of the cylindrical cell 20b, so that the outer casing 11b of the controller 10b is electrically connected to the positive electrode of the cylindrical cell 20 b.

The pressure relief hole 113b on the outer periphery of the outer case 11b of the controller 10b communicates with the cell pressure relief hole 22b to discharge gas generated from the columnar cell 20 b. When the columnar cell 20b is combined with the controller 10b, the rounded corner of the aluminum shell of the columnar cell 20b abuts against the positioning cylindrical surface structure of the outer shell 11b of the controller 10 b.

The present disclosure further provides a cylindrical battery 100c, as shown in fig. 16, fig. 16 is an exploded schematic view of a soft-package cylindrical battery of the present disclosure, and the cylindrical battery 100c includes the above-mentioned controller 10c with an indicator light and a cylindrical battery core 20 c. The electrode cap 15c of the controller 10c is a positive electrode cap. The cylindrical cell 20c may be a lithium ion cell.

The outer casing 25c of the columnar cell 20c is a soft outer casing, that is, the columnar cell 20c is a soft package battery, a negative electrode plate 22c is disposed at the bottom end of the soft outer casing, and the negative electrode plate 22c extends toward the other end of the columnar cell 20 c. The cylindrical battery core 20c is sleeved into a battery outer shell 24c, and the negative electrode plate 22c is welded with the battery outer shell 24 c. The outer case 11c of the controller 10c is connected to the battery outer case 24 c. The cylindrical battery cell 20c is provided with a positive electrode tab 21c, and the positive electrode tab 21c is connected to an internal electrode of the controller 10 c.

In an embodiment, the controller with the indicator light may also be disposed at the negative end of the soft package core. Specifically, the present disclosure further provides a cylindrical battery, which includes the above controller with an indicator light and a cylindrical battery core. The electrode cap of the controller is a negative electrode cap. The columnar cell can be a lithium ion cell.

The shell of this column electricity core is soft shell, and this column electricity core is laminate polymer battery promptly, and the bottom of this soft shell is provided with positive electrode plate, and this positive electrode plate extends to the other end of column electricity core. The columnar battery core is sleeved into a battery shell, the positive electrode plate is connected with the battery shell in a welding mode, and a positive electrode boss is formed at the bottom end of the battery shell. The outer casing of the controller is connected with the outer casing of the battery. The columnar cell is provided with a negative electrode plate, and the negative electrode plate is connected with an inner electrode of the controller.

The above description is only for the purpose of illustrating the preferred embodiments of the present disclosure and is not to be construed as limiting the scope of the present disclosure, but rather is intended to cover all equivalent structural changes made by applying the teachings of the present disclosure to the accompanying drawings.

Claims

1. A controller with an indicator light, comprising:

the circuit board is positioned in the cavity and comprises a first surface and a second surface which are opposite, and circuit components are welded on the second surface;

2. The controller with indicator light of claim 1, wherein the visor is continuous around the cap body.

3. The controller with the indicator light of claim 1, wherein the light guide assembly comprises a light guide plate, the light guide plate is made of an insulating light guide material, the light guide plate comprises a first surface and a second surface which are parallel to each other and are arranged oppositely, the through hole penetrates through the first surface and the second surface, the hole wall of the through hole surrounds and contacts with the periphery of the cap body, the second surface of the light guide plate is attached to the brim, so that light emitted by the indicator light passes through the light transmission hole and is transmitted along the radial direction of the light guide plate, and an annular light emitting surface is formed at the radial periphery of the light guide plate.

4. The controller with indicator light of claim 3, wherein the hole wall of the through hole of the light guide plate closes the light transmission hole.

5. The controller with indicator light of claim 3, wherein the light guide assembly further comprises a light shielding layer covering or coated on the light guide sheet.

6. The controller with indicator light of claim 5, wherein the light-transmissive hole is disposed at an intersection of the cap body and the visor and extends from the cap body up to the visor, and a wall of the through-hole closes the light-transmissive hole together with the light-shielding layer.

7. The controller with indicator light of claim 6, wherein the sum of the height of the wall of the through hole and the thickness of the light shielding layer is greater than the height of the light-transmitting hole.

8. The controller with the indicator light as claimed in claim 3, wherein the controller housing includes an outer housing, the outer housing includes a cylindrical outer sidewall and a limit baffle formed at an axial end of the outer sidewall, the center of the limit baffle opens the opening, a pad is provided at an outer edge of the first surface of the circuit board and is bonded to an inner surface of the limit baffle via the pad, the second surface of the light guide plate covers both the brim of the electrode cap and the outer surface of the limit baffle, and the light guide plate extends from the outer wall of the cap body to be flush with the outer sidewall of the outer housing.

9. The controller with indicator light of claim 8, wherein the controller housing further comprises an inner housing disposed within the cavity, the outer housing, the inner housing, and the circuit board being connected by soldering.

10. The controller with indicator light of claim 9, wherein the bottom of the outer housing is extended from the bottom of the inner housing, the extended portion forms an annular positioning cylindrical structure, or the bottom of the outer housing is retracted from the bottom of the inner housing, and the portion of the inner housing extended from the outer housing forms an annular positioning groove.

11. The controller with indicator light of claim 1, wherein the electrode cap is a positive electrode cap or a negative electrode cap.

12. The controller with the indicator light as claimed in claim 1, wherein an inner electrode is further disposed on the second surface of the circuit board, and the inner electrode is electrically connected to the electrode cap through a component of the circuit board.

13. A cylindrical battery, comprising:

a columnar cell having a positive electrode and a negative electrode; and

the controller with the indicator light of any one of claims 1 to 12, wherein the controller is installed at one end of a positive electrode of the cylindrical battery cell, an outer casing of the controller is electrically connected with a negative electrode of the cylindrical battery cell, and an inner electrode of the controller is electrically connected with the positive electrode of the cylindrical battery cell.

14. The cylindrical battery according to claim 13, wherein the cylindrical battery cell is a soft package battery cell, a negative electrode arranged at one end of the cylindrical battery cell is a negative electrode plate, the negative electrode plate extends towards the other end of the cylindrical battery cell, the cylindrical battery cell is sleeved into a battery outer shell, the negative electrode plate is welded with the battery outer shell, and an outer shell of the controller is connected with the battery outer shell;

15. The cylindrical battery according to claim 13, wherein the housing of the cylindrical battery cell is a steel shell, the steel shell of the cylindrical battery cell is a negative electrode of the cylindrical battery cell, and the outer shell of the controller is connected with the steel shell;

the columnar battery cell is provided with a positive electrode boss, the positive electrode boss is a positive electrode of the columnar battery cell, and the positive electrode boss is connected with an inner electrode of the controller.

16. A cylindrical battery, comprising:

a columnar cell having a positive electrode and a negative electrode; and

the controller with the indicator light of any one of claims 1 to 12, wherein the controller is installed at one end of the negative electrode of the cylindrical battery cell, the outer casing of the controller is electrically connected with the positive electrode of the cylindrical battery cell, and the inner electrode of the controller is electrically connected with the negative electrode of the cylindrical battery cell.

17. The cylindrical battery according to claim 16, wherein the cylindrical battery cell is a soft package battery cell, a positive electrode arranged at one end of the cylindrical battery cell is a positive electrode plate, the positive electrode plate extends towards the other end of the cylindrical battery cell, the cylindrical battery cell is sleeved into a battery outer shell, the positive electrode plate is welded with the battery outer shell, and an outer shell of the controller is connected with the battery outer shell;

18. The cylindrical battery of claim 16, wherein the housing of the cylindrical battery cell is an aluminum housing, the aluminum housing of the cylindrical battery cell is a positive electrode of the cylindrical battery cell, and the outer housing of the controller is connected with the aluminum housing;

the columnar battery cell is provided with a negative electrode boss, the negative electrode boss is a negative electrode of the columnar battery cell, and the negative electrode boss is connected with an inner electrode of the controller.