Battery and rare earth luminescent material writing blackboard

Abstract

The invention relates to the technical field of batteries, and discloses a battery and a rare earth luminescent material writing blackboard, the battery comprises a shell, the top surface of the shell is provided with a first polar plate groove and a second polar plate groove, the top surface of the shell is provided with an accommodating groove, and a positive plate is arranged in the first polar plate groove; a negative plate is arranged in the second polar plate groove; a composite positive electrode, a solid electrolyte and a composite negative electrode are arranged in the accommodating groove from left to right, the composite positive electrode is in contact with the positive plate, and the composite negative electrode is in contact with the negative plate; grooves are formed in the side surfaces of the first polar plate groove and the second polar plate groove; a reed is arranged in the groove and is elastically extruded with the positive plate and the negative plate; a sealing cover is arranged on the shell; a positive tab and a negative tab are arranged on the sealing cover; by arranging the reed, the positive plate is tightly attached to the composite positive electrode, and the negative plate is tightly attached to the composite negative electrode, so that the problem that the surface flatness of the composite positive electrode and the composite negative electrode is limited is solved, and the charging and discharging efficiency of the battery is improved.

Description

Technical Field

[0001] The invention relates to the technical field of batteries, in particular to a battery and a rare earth luminescent material writing blackboard. Background Art

[0002] As a new type of blackboard, LCD writing board is mostly used in classrooms. It has built-in storage battery, which can still perform partial erasure and one-key clearing function in case of power failure. Storage battery is becoming more and more popular in the market due to its advantages such as lightness, thinness, various shapes and reliable performance. At present, most of the thin and light batteries adopt soft pack batteries, whose shell is a three-layer structure of polymer-aluminum foil-polymer, and the top and side seals are made by hot pressing of aluminum-plastic film.

[0003] A Chinese patent with application number 202111365889.X discloses an ultra-thin lithium-manganese battery, including an aluminum-plastic film, a diaphragm, a negative electrode and a positive electrode. An electrochemically stable resin-type oily adhesive is coated on both sides of the diaphragm. The negative electrode is arranged on one side of the diaphragm by gluing, and the positive electrode is arranged on the other side of the diaphragm by gluing to form an integrated structure. The aluminum-plastic film is arranged on the outside of the diaphragm, the negative electrode and the positive electrode.

[0004] A Chinese patent with application number 202121151287.X discloses an ultra-thin battery, including a battery cell, a first cover body and a second cover body, the first cover body and the second cover body are both single metal layer structures, the first cover body includes a first accommodating cavity and a first flange formed around the opening edge of the first accommodating cavity, the second cover body includes a second accommodating cavity and a second flange formed around the opening edge of the second accommodating cavity, the first accommodating cavity and the second accommodating cavity are combined to form a cavity for accommodating the battery cell, the first flange and the second flange are welded and fixed to achieve sealing between the first cover body and the second cover body, the first flange and the second flange are arranged at one end along the length direction of the battery cell to form a positive output cavity for accommodating the positive electrode ear and for the positive electrode ear to pass through, and the first flange and the second flange are arranged at the other end along the length direction of the battery cell to form a negative output cavity for accommodating the negative electrode ear and for the negative electrode ear to pass through.

[0005] The degree of fit between the positive plate and the composite positive electrode affects the battery's charge and discharge efficiency, and the degree of fit between the negative plate and the composite negative electrode affects the battery's charge and discharge efficiency. The existing contact method between the positive plate and the composite positive electrode is surface contact, and the contact method between the negative plate and the composite negative electrode is surface contact. However, the surface flatness of the composite positive electrode and the composite negative electrode is limited, resulting in poor fit with the positive plate and the negative plate, affecting the battery's charge and discharge efficiency. Summary of the invention

[0006] The purpose of the present invention is to provide a battery and a rare earth luminescent material writing blackboard to solve the problem that the surface flatness of the composite positive electrode and the composite negative electrode proposed in the above background technology is limited, resulting in poor adhesion with the positive plate and the negative plate, affecting the charging and discharging efficiency of the battery.

[0007] The technical solution adopted by the present invention is as follows: a battery comprises a shell, the shell is rectangular in shape, a first electrode plate groove and a second electrode plate groove are provided on the top surface of the shell, a receiving groove is provided on the top surface of the shell, the receiving groove is communicated with the first electrode plate groove, the receiving groove is communicated with the second electrode plate groove, a positive electrode plate is provided in the first electrode plate groove; a negative electrode plate is provided in the second electrode plate groove; a composite positive electrode, a solid electrolyte, and a composite negative electrode arranged from left to right are provided in the receiving groove, the composite positive electrode contacts the positive electrode plate, and the composite negative electrode contacts the negative electrode plate; grooves arranged at equal intervals from top to bottom are provided on the sides of the first electrode plate groove and the second electrode plate groove; a spring sheet is provided in the groove, the spring sheet is composed of a straight line segment and an arc segment, the straight line segment and the groove are offset, The arc segment is elastically squeezed with the positive plate and the negative plate; a cover is provided on the shell, and an insertion portion is provided on the cover, and the insertion portion is adapted to the first plate groove and the second plate groove; the cover is provided with a first through groove and a second through groove, a first insulating sleeve is provided in the first through groove, a positive electrode ear is provided on the first insulating sleeve, and a first L-shaped groove symmetrically arranged up and down is opened on the side wall of the positive electrode ear, the first L-shaped groove located at the lower end is connected to the positive plate, and the first L-shaped groove located at the upper end extends out of the cover; a second insulating sleeve is provided in the second through groove, and a negative electrode ear is provided on the second insulating sleeve, and a second L-shaped groove symmetrically arranged up and down is opened on the side wall of the negative electrode ear, the second L-shaped groove located at the lower end is connected to the negative plate, and the second L-shaped groove located at the upper end extends out of the cover.

[0008] The box cover is provided with a pressure box, the box cover is provided with a first pipe opening, the first pipe opening is provided with a first pipe head, the first pipe head is fixed by a first limiting nut, a one-way valve is provided on the first pipe head, and fire extinguishing material is injected into the pressure box through the one-way valve; the pressure box is provided with a second pipe opening, the second pipe opening is provided with a second pipe head, the second pipe head is fixed by a second limiting nut, an internal thread groove is provided on the second pipe head, a blocking plate is provided on the internal thread groove, and a pressure ring for fixing the blocking plate is screwed on the internal thread groove; the pressure box is provided with a U-shaped seat, the U-shaped seat is provided with a tube body, a steel needle is slidably connected to the tube body, the tip of the steel needle faces the blocking plate, the tail end of the steel needle has a limiting portion, and the length of the steel needle is greater than the length of the tube body; the tube body is provided with a guide groove, a sleeve is slidably connected in the guide groove, the sleeve is slidably connected to the steel needle, a third spring is sleeved on the sleeve, and the third spring is elastically connected to the tube body; the side wall of the steel needle is provided with a wedge seat, the wedge seat is located in the guide groove, The large diameter end of the wedge-shaped seat is close to the tip of the steel needle; the side wall of the steel needle is sleeved with a fourth spring, and the fourth spring is located between the wedge-shaped seat and the sleeve in an elastically connected manner; a carrier plate is provided on the sleeve outside the tube body, and a push column is provided on the carrier plate, and the surface where the push column is located is longer than the surface where the limiting portion is located; a ejector pin is provided on the carrier plate, and the ejector pin is parallel to the steel needle, and the front end of the ejector pin has a first wedge-shaped surface; a side plate is provided on the bottom surface of the tube body, and a countersunk hole connected to the guide groove is provided on the side plate, and a fifth spring is provided in the countersunk hole, and a locking tongue is provided at the upper end of the fifth spring, and the side wall of the locking tongue has a guide rod, and the side wall of the countersunk hole is provided with a limiting groove slidably connected to the guide rod; the top surface of the locking tongue has a serrated groove, which is adapted to the wedge-shaped seat, and the side wall of the locking tongue is provided with a second wedge-shaped surface, which is inclined downward from left to right; a sliding hole is provided on the side plate to be slidably connected to the ejector pin, and the sliding hole is connected to the countersunk hole; the first wedge surface of the ejector pin is adapted to the second wedge surface of the locking tongue.

[0009] Furthermore, a rare earth luminescent material writing blackboard using the above-mentioned battery includes a back panel, on which is installed a box containing batteries, a reflective sheet, a light guide plate, a prism sheet, a diffuser, a polarizer, a lower conductive film, a liquid crystal layer, an upper matte conductive film, and a front frame arranged from bottom to top, the liquid crystal layer is connected to a control IC, and the control IC is powered by a battery; the side wall of the light guide plate is connected to a lamp; the liquid crystal layer includes a lower conductive layer, a cholesteric liquid crystal, a polymer, and an upper conductive layer arranged from bottom to top.

[0010] Rare earth elements are added to the light-emitting diodes on the lamp tube; the rare earth elements include europium, terbium, and dysprosium rare earth elements, and the ratios of europium, terbium, and dysprosium rare earth elements are 36%, 40%, and 24%; the amount of the rare earth elements added is 2.5% of the total weight of the resin material.

[0011] The beneficial effect of the present invention is that: by setting the spring sheet, the positive plate is closely fitted with the composite positive electrode, and the negative plate is closely fitted with the composite negative electrode, thereby overcoming the problem of limited surface flatness of the composite positive electrode and the composite negative electrode, and improving the charging and discharging efficiency of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main cross-sectional structure of this application.

[0013] Figure 2 It is a schematic diagram of the main cross-sectional structure of the shell.

[0014] Figure 3 It is a schematic diagram of the top view of the shell structure.

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the positive plate and the negative plate.

[0016] Figure 5 It is a schematic diagram of the top view structure of the reed.

[0017] Figure 6 It is a schematic diagram of the three-dimensional structure of the cover.

[0018] Figure 7 It is a schematic diagram of the three-dimensional structure of the positive electrode ear and the negative electrode ear.

[0019] Figure 8 It is a schematic diagram of the three-dimensional structure of the positive electrode ear and the positive electrode plate.

[0020] Fig. 9 It is a schematic diagram of the three-dimensional structure of the box.

[0021] Fig.10 It is a schematic diagram of the three-dimensional structure of the box body and the box cover.

[0022] Fig.11 A schematic diagram of the three-dimensional structure of the connector.

[0023] Fig.12 It is a schematic diagram of the three-dimensional structure of the first splint and the second splint.

[0024] Fig.13 This is a schematic diagram of the main cross-sectional structure of the copper busbar.

[0025] Fig.14 This is the wiring diagram of the connector.

[0026] Fig.15 It is a schematic diagram of the top view of the telescope structure.

[0027] Fig.16 The three-dimensional structure of the telescope is shown in FIG. Figure 1 .

[0028] Fig.17 The three-dimensional structure of the telescope is shown in FIG. Figure 2 .

[0029] Fig.18 It is a schematic diagram of the main structure of the first shaft rod and the second shaft rod.

[0030] Fig.19 Schematic diagram of the three-dimensional structure of the frame.

[0031] Fig. 20 Schematic diagram of the top view of the long bolt.

[0032] Fig.21 It is a schematic diagram of the top cross-sectional structure of a long bolt.

[0033] Fig. 22 Schematic diagram of the top view of the pressure box.

[0034] Fig.23 It is a schematic diagram of the main cross-sectional structure of the pressure box.

[0035] Fig.24 Schematic diagram of the three-dimensional structure of the pressure box.

[0036] Fig.25 It is a schematic diagram of the main cross-sectional structure of the impact needle.

[0037] Fig.26 It is a schematic diagram of the side structure of the heat dissipation hole.

[0038] Fig. 27 Schematic diagram of the three-dimensional structure of the U-shaped tube.

[0039] Fig.28 It is a schematic diagram of the three-dimensional structure of the tube body.

[0040] Fig.29 It is a schematic diagram of the main cross-sectional structure of the tube body.

[0041] Fig.30 It is a schematic diagram of the main cross-sectional structure of the steel needle.

[0042] Fig.31 This is a schematic diagram of the three-dimensional structure of the steel needle.

[0043] Fig.32 Schematic diagram of the three-dimensional structure of the ejector pin.

[0044] Fig.33 It is a schematic diagram of the three-dimensional structure of the lock tongue.

[0045] Fig.34 A schematic diagram of the backplane structure.

[0046] In the figure: 1, shell; 2, first plate slot; 3, second plate slot; 4, accommodating slot; 5, positive plate; 6, negative plate; 7, composite positive electrode; 8, solid electrolyte; 9, composite negative electrode; 10, groove; 11, spring; 12, straight line segment; 13, arc segment; 14, cover; 15, insertion portion; 16, first through slot; 17, second through slot; 18, first insulating sleeve; 19, positive ear; 20, first L-shaped slot; 21, second insulating sleeve; 22, negative ear; 23, second L-shaped slot; 24, box; 25, flange; 26, bolt hole; 27, connecting bolt; 28, box cover; 29, sealing strip; 30, cable hole; 31, connector; 32, plug connector; 33, buffer assembly; 34, first a clamping plate; 35, a second clamping plate; 36, a positioning bolt; 37, an opening slot; 38, a U-shaped conductive sheet; 39, a copper busbar; 40, a power transmission cable; 41, a telescoping device; 42, a frame; 43, a first spring; 44, a first hinge seat; 45, a second hinge seat; 46, a first connecting rod; 47, a second connecting rod; 48, a third hinge seat; 49, a first slider; 50, a first slide slot; 51, a fourth hinge seat; 52, a second slider; 53, a second slide slot; 54, a third connecting rod; 55, a fourth connecting rod; 56, a fifth hinge seat; 57, a third slider; 58, a third slide slot; 59, a sixth hinge seat; 60, a fourth slider; 61, a fourth slide slot; 62, a first shaft rod; 63, a second shaft rod; 64, a strip ;65, vertical plate;66, several-shaped seat;67, long bolt;68, adjusting nut;69, pressure box;70, first pipe mouth;71, first pipe head;72, first limiting nut;73, one-way valve;74, second pipe mouth;75, second pipe head;76, second limiting nut;77, internal thread groove;78, plugging plate;79, pressure ring;80, screw groove;81, U-shaped seat;82, guide seat;83, impact needle;84, push part;85, second spring;86, heat dissipation hole;87, U-shaped pipe;88, air inlet pipe;89, blower;90, air outlet pipe;91, pipe body;92, steel needle;93, limiting part;94, guide groove;95, sleeve;96, third spring;97, wedge seat;98, Fourth spring; 99, carrier plate; 100, ejector pin; 101, ejector pin; 102, first wedge-shaped surface; 103, side plate; 104, countersunk hole; 105, fifth spring; 106, locking tongue; 107, guide rod; 108, limit groove; 109, serrated groove; 110, second wedge-shaped surface; 111, sliding hole; 112, back plate; 113, reflector; 114, light guide plate; 115, prism; 116, diffuser; 117, polarizer; 118, lower conductive film; 119, liquid crystal layer; 120, upper matte conductive film; 121, front frame; 122, control IC; 123, lamp tube; 124, lower conductive layer; 125, cholesteric liquid crystal; 126, polymer; 127, upper conductive layer. DETAILED DESCRIPTION

[0047] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0048] In the description of the present invention, it is to be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In addition, the terms "first", "second", "third", "fourth", "fifth", and "sixth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] like Figure 1 to Figure 8As shown, in the first embodiment, a battery comprises a shell 1, the shell 1 is rectangular in shape, a first electrode plate slot 2 and a second electrode plate slot 3 are provided on the top surface of the shell 1, the first electrode plate slot 2 and the second electrode plate slot 3 are of the same size, a receiving slot 4 is provided on the top surface of the shell 1, the receiving slot 4 is connected to the first electrode plate slot 2, the receiving slot 4 is connected to the second electrode plate slot 3, and the width of the receiving slot 4 is smaller than the first electrode plate slot 2, and the height of the receiving slot 4 is smaller than the height of the first electrode plate slot 2; a positive electrode plate 5 is installed in the first electrode plate slot 2, and the height of the positive electrode plate 5 is smaller than the height of the first electrode plate slot 2; a negative electrode plate 6 is installed in the second electrode plate slot 3, and the height of the negative electrode plate 6 is smaller than the height of the second electrode plate slot The height of the electrode groove 3; the composite positive electrode 7, the solid electrolyte 8, and the composite negative electrode 9 are arranged from left to right in the accommodating groove 4, the composite positive electrode 7 is in contact with the positive electrode plate 5, and the composite negative electrode 9 is in contact with the negative electrode plate 6. The composite positive electrode 7, the solid electrolyte 8, and the composite negative electrode 9 are made by an integrated molding technology, and the height of the composite positive electrode 7, the solid electrolyte 8, and the composite negative electrode 9 is less than the height of the positive electrode plate 5; the sides of the first electrode groove 2 and the second electrode groove 3 are provided with grooves 10 arranged at equal intervals from top to bottom, and the grooves 10 on both sides are opposite; a reed 11 is placed in the groove 10, and the reed 11 is composed of a straight line segment 12 and an arc segment 13, and the straight line segment 1 2 is against the groove 10, and the arc segment 13 is elastically squeezed with the positive plate 5 (negative plate 6), so that the positive plate 5 is closely fitted with the composite positive electrode 7, and the negative plate 6 is closely fitted with the composite negative electrode 9; a cover 14 is fixed to the shell 1 by screws, and the cover 14 has an insertion portion 15, and the insertion portion 15 is adapted to the first plate groove 2 (the second plate groove 3); the cover 14 has a first through groove 16 and a second through groove 17, and a first insulating sleeve 18 is installed in the first through groove 16, and a positive ear 19 is installed on the first insulating sleeve 18, and the side wall of the positive ear 19 is provided with a first L-shaped groove 20 arranged symmetrically up and down, and the first L-shaped groove 20 at the lower end is provided. It is connected to the positive electrode plate 5, and the first L-shaped groove 20 at the upper end extends out of the cover 14; a second insulating sleeve 21 is installed in the second through groove 17, and a negative electrode ear 22 is installed on the second insulating sleeve 21, and the side wall of the negative electrode ear 22 is provided with a second L-shaped groove 23 arranged symmetrically up and down, the second L-shaped groove 23 at the lower end is connected to the negative electrode plate 6, and the second L-shaped groove 23 at the upper end extends out of the cover 14; the present application arranges the spring leaf 11, so that the positive electrode plate 5 is tightly fitted with the composite positive electrode 7, and the negative electrode plate 6 is tightly fitted with the composite negative electrode 9, thereby overcoming the problem of limited surface flatness of the composite positive electrode 7 and the composite negative electrode 9, and improving the charging and discharging efficiency of the battery.

[0052] like Fig. 9 and Fig.10As shown, as an optimization of the first embodiment, considering the problem of battery explosion, it also includes a box body 24, the box body 24 is a groove-shaped structure, the box body 24 has a flange 25, the flange 25 is provided with bolt holes 26, and a plurality of bolt holes 26 are arranged around the circumference of the flange 25; a box cover 28 is fixed to the bolt hole 26 by connecting bolts 27, preferably, a sealing strip 29 is installed on the contact surface between the box cover 28 and the box body 24; a cable hole 30 is provided on the side wall of the box body 24; the box body 24 is used to place the battery, and the present embodiment The number of batteries in the embodiment is 4, but not limited to 4. The 4 batteries are connected in series through a connector 31. The positive and negative ends of the connector 31 are connected to a connector 32. The connector 32 is a commercially available product and is arranged on the cable hole 30. A buffer assembly 33 is installed on the box cover 28. The buffer assembly 33 is used to compress and position the battery. By enclosing the battery in the box body 24, the battery explosion can be confined to a certain space, which plays a first layer of safety protection role, and the buffer assembly 33 can play a second layer of safety protection role.

[0053] like Figure 11~Figure 14 As shown, as an optimization of the first embodiment, the connector 31 includes a first clamping plate 34 and a second clamping plate 35, the first clamping plate 34 and the second clamping plate 35 are connected together by a positioning bolt 36, and the opposite surfaces of the first clamping plate 34 and the second clamping plate 35 have an open groove 37, and a U-shaped conductive sheet 38 is connected in the open groove 37. The gap between the two U-shaped conductive sheets 38 is used to clamp the positive ear 19 (negative ear 22); a copper bar 39 is clamped and fixed between the U-shaped conductive sheet 38 and the first L-shaped groove 20, or a copper bar 39 is clamped and fixed between the U-shaped conductive sheet 38 and the second L-shaped groove 23. The copper bus 39 is connected to a transmission cable 40; the specific connection order of the four batteries is: the positive ear 19 of the first battery is directly connected to the plug-in connector 32 via the connector 31; the negative ear 22 of the first battery is connected to the positive ear 19 of the second battery via the connector 31, the negative ear 22 of the second battery is connected to the positive ear 19 of the third battery via the connector 31, the negative ear 22 of the third battery is connected to the positive ear 19 of the fourth battery via the connector 31, and the negative ear 22 of the fourth battery is connected to the plug-in connector 32 via the connector 31.

[0054] like Fig.15 As shown, as an optimization of the first embodiment, the number of the buffer components 33 is 2, one buffer component 33 acts on the two batteries on the upper side, and the other buffer component 33 acts on the two batteries on the lower side; the buffer component 33 includes a retractor 41, the number of the retractors 41 is 4, and the four retractors 41 are symmetrically arranged. The retractor 41 is connected to a frame 42, the frame 42 is against the battery, and the gap between the frame 42 and the box cover 28 is connected to a first spring 43 arranged in a matrix, and the first spring 43 and the retractor 41 can both buffer the impact force generated by the battery explosion.

[0055] like Figure 16~Figure 18 As shown, as an optimization of the first embodiment, the telescopic device 41 includes a first hinge seat 44 and a second hinge seat 45. The first hinge seat 44 is arranged on the box cover 28, and the second hinge seat 45 is arranged on the frame 42. The first hinge seat 44 is hinged with a first connecting rod 46 and a second connecting rod 47. The free end of the first connecting rod 46 is hinged with a third hinge seat 48, and the third hinge seat 48 is connected to a first slider 49. The frame 42 is provided with a first slide groove 50 slidably connected to the first slider 49; the free end of the second connecting rod 47 is hinged with a fourth hinge seat 51, and the fourth hinge seat 51 is connected to a second slider 52. The frame 42 is provided with a second slide groove 53 slidably connected to the second slider 52; the second hinge seat 45 is hinged with a third connecting rod 54 and a fourth connecting rod 55, and the free end of the third connecting rod 54 is hinged with a fifth hinge seat 56. The seat 56 is connected with a third slider 57, and the box cover 28 is provided with a third slide groove 58 slidably connected with the third slider 57; the free end of the fourth connecting rod 55 is hinged with a sixth hinge seat 59, and the sixth hinge seat 59 is connected with a fourth slider 60, and the box cover 28 is provided with a fourth slide groove 61 slidably connected with the fourth slider 60; the waist of the first connecting rod 46 is rotatably connected with a first shaft rod 62, and the first shaft rod 62 is rotatably connected with the third connecting rod 54; the waist of the second connecting rod 47 is rotatably connected with a second shaft rod 63, and the second shaft rod 63 is rotatably connected with the fourth connecting rod 55; if the battery explodes, it will push the frame 42 to move to the left, the angle between the third connecting rod 54 and the fourth connecting rod 55 will increase, and at the same time, the angle between the first connecting rod 46 and the second connecting rod 47 will increase, and the first spring 43 will be compressed, so as to achieve the buffering of the impact force. The telescopic device 41 can be replaced with a hydraulic cylinder or a cylinder.

[0056] like Figure 19~Figure 21 As shown, as an optimization of the first embodiment, considering that the position of the above-mentioned frame 42 is not adjustable, the pressing force of the frame 42 on the battery should not be too large, and the frame 42 is composed of four strips 64 connected end to end, and two vertical plates 65 are connected between the upper and lower strips 64 of the frame 42, and the two vertical plates 65 are used to install the first spring 43, and the front and rear strips 64 of the frame 42 are used to install the retractor 41; the upper and lower strips 64 of the frame 42 are fixed with a shaped seat 66 by screws, and a long bolt 67 is connected in the recess of the shaped seat 66, and the threaded portion of the long bolt 67 extends out of the outside of the box cover 28, and the long bolt 67 is slidably matched with the box cover 28. The threaded portion of the long bolt 67 is screwed with an adjusting nut 68, and the distance between the frame 42 and the box cover 28 can be controlled by screwing the adjusting nut 68 to prevent the frame 42 from crushing the battery.

[0057] like Figure 22~Figure 25As shown, as an optimization of the first embodiment, considering that the battery explosion may cause a fire, a pressure box 69 is fixed on the box cover 28, a first pipe opening 70 is provided on the box cover 28, a first pipe head 71 is connected to the first pipe opening 70, the first pipe head 71 is fixed by a first limiting nut 72, a one-way valve 73 is connected to the first pipe head 71, a fire extinguishing material is injected into the pressure box 69 through the one-way valve 73, and the fire extinguishing material can be selected as dry powder or water; a second pipe opening 74 is provided on the pressure box 69, a second pipe opening 74 is connected to the second pipe head 75, the second pipe head 75 is fixed by a second limiting nut 76, an internal thread groove 77 is provided on the second pipe head 75, a plugging plate 78 is installed on the internal thread groove 77, the plugging plate 78 is made of glass, and a fixed plugging plate is screwed on the internal thread groove 77 The pressure ring 78 has a pressure ring 79, and the inner wall of the pressure ring 79 has a screw groove 80 to facilitate the rotation of the pressure ring 79; the pressure box 69 is connected to a U-shaped seat 81, and the U-shaped seat 81 is connected to a guide seat 82, and a striker needle 83 is slidably connected to the guide seat 82, and the tip of the striker needle 83 faces the blocking plate 78, and the tail end of the striker needle 83 has a push portion 84, and the diameter of the push portion 84 is larger than the diameter of the striker needle 83. A second spring 85 is sleeved on the striker needle 83, and the second spring 85 is elastically connected between the guide seat 82 and the push portion 84. The second spring 85 makes the push portion 84 close to the battery. If the battery explodes, the expanded battery pushes the striker needle 83 to move to the left, and the striker needle 83 pierces the blocking plate 78, and the fire extinguishing material in the pressure box 69 is released, which can quickly extinguish the fire.

[0058] like Fig.26 and Fig. 27 As shown, as an optimization of the first embodiment, taking into account the heat dissipation problem of the battery, the top surface of the box body 24 is provided with heat dissipation holes 86 arranged at equal intervals, and the adjacent heat dissipation holes 86 below are connected in series through a U-shaped tube 87; the adjacent heat dissipation holes 86 above are connected in series through a U-shaped tube 87 to form a serpentine heat dissipation channel, wherein the heat dissipation holes 86 located on the front side are connected to an air inlet pipe 88, the air inlet pipe 88 is connected to a blower 89, and the heat dissipation holes 86 located on the rear side are connected to an air outlet pipe 90. By arranging the heat dissipation holes 86 on the box body 24, the heat dissipation efficiency of the battery can be improved and the safe use of the battery can be ensured.

[0059] like Figure 28 to Figure 33As shown, in the second embodiment, the difference from the first embodiment is that, considering that the battery explosion may cause fire, a pressure box 69 is fixed on the box cover 28, a first pipe opening 70 is provided on the box cover 28, a first pipe head 71 is connected to the first pipe opening 70, the first pipe head 71 is fixed by a first limiting nut 72, a one-way valve 73 is connected to the first pipe head 71, the one-way valve 73 is a commercially available product, and a fire extinguishing material is injected into the pressure box 69 through the one-way valve 73, and the fire extinguishing material can be selected from dry powder or water; a second pipe opening 74 is provided on the pressure box 69, a second pipe opening 74 is connected to a second pipe head 75, the second pipe head 75 is fixed by a second limiting nut 76, an internal thread groove 77 is provided on the second pipe head 75, and the internal thread groove 77 is provided on the second pipe head 75. A plugging plate 78 is installed on the pressure box 69, and the material of the plugging plate 78 is glass. A pressure ring 79 for fixing the plugging plate 78 is screwed on the internal thread groove 77, and the inner side wall of the pressure ring 79 has a screwing groove 80 to facilitate the rotation of the pressure ring 79; the pressure box 69 is connected to a U-shaped seat 81, and the U-shaped seat 81 is connected to a tube body 91, and a steel needle 92 is slidably connected to the tube body 91, and the tip of the steel needle 92 faces the plugging plate 78, and the tail end of the steel needle 92 has a limiting portion 93, and the length of the steel needle 92 is greater than the length of the tube body 91; a guide groove 94 is provided on the tube body 91, and a sleeve 95 is slidably connected in the guide groove 94, and the sleeve 95 is slidably connected to the steel needle 92, and a third spring 96 is sleeved on the sleeve 95, and the third spring 96 is elastically connected to the tube body 91; the steel needle 92 is provided with a guide groove 94, and a sleeve 95 is slidably connected in the guide groove 94. The sleeve 95 is slidably connected to the steel needle 92, and a third spring 96 is sleeved on the sleeve 95, and the third spring 96 is elastically connected to the tube body 91; A wedge-shaped seat 97 is fixed to the side wall of the needle 92, and the wedge-shaped seat 97 is located in the guide groove 94, and the large diameter end of the wedge-shaped seat 97 is close to the tip of the steel needle 92; a fourth spring 98 is sleeved on the side wall of the steel needle 92, and the fourth spring 98 is elastically connected between the wedge-shaped seat 97 and the sleeve 95; a carrier plate 99 is connected to the sleeve 95 outside the tube body 91, and a push column 100 is connected to the carrier plate 99, and the surface where the push column 100 is located is longer than the surface where the limit portion 93 is located, so as to ensure that the expanded battery pushes the push column 100 first; a push pin 101 is connected to the carrier plate 99, and the push pin 101 is parallel to the steel needle 92, and the front end of the push pin 101 has a first wedge-shaped surface 102; the bottom surface of the tube body 91 is connected to a side plate 103, and the side plate 1 A counterbore 104 connected to the guide groove 94 is provided on 03, a fifth spring 105 is connected in the counterbore 104, a lock tongue 106 is connected to the upper end of the fifth spring 105, a side wall of the lock tongue 106 has a guide rod 107, a limit groove 108 is provided on the side wall of the counterbore 104 to be slidably connected to the guide rod 107, and the limit groove 108 controls the guide rod 107 to move in the up and down direction; a sawtooth groove 109 is provided on the top surface of the lock tongue 106, and the sawtooth groove 109 is adapted to the wedge seat 97, and a second wedge surface 110 is provided on the side wall of the lock tongue 106, and the second wedge surface 110 is inclined downward from left to right; a sliding hole 111 is provided on the side plate 103 to be slidably connected to the ejector pin 101, and the sliding hole 111 is connected to the counterbore 104;The first wedge surface 102 of the ejector pin 101 is matched with the second wedge surface 110 of the lock tongue 106. In the initial state, the lock tongue 106 is locked with the wedge seat 97, and the steel needle 92 is away from the blocking plate 78. When the battery expands, the ejector pin 100 is pushed to move, the ejector pin 101 squeezes the lock tongue 106 downward, the lock tongue 106 is disengaged from the wedge seat 97, the fourth spring 98 is reset, the steel needle 92 moves quickly to the left, the blocking plate 78 is instantly pierced, and the fire extinguishing material of the pressure box 69 is released, which can quickly extinguish the fire. Compared with the first embodiment, the reaction is faster and the fire extinguishing effect is better. ;

[0060] like Fig.34 As shown, further, a rare earth luminescent material writing blackboard using the above-mentioned battery is proposed, including a back plate 112, on which a box 24 containing batteries, a reflective sheet 113, a light guide plate 114, a prism sheet 115, a diffuser 116, a polarizer 117, a lower conductive film 118, a liquid crystal layer 119, an upper matte conductive film 120, and a front frame 121 are installed from bottom to top, the liquid crystal layer 119 is connected to a control IC 122, and the control IC 122 is powered by a battery; the side wall of the light guide plate 114 is connected to a lamp tube 123; the liquid crystal layer 119 includes, from bottom to top, a lower conductive layer 124, a cholesteric liquid crystal 125, a polymer 126, and an upper conductive layer 127.

[0061] Furthermore, considering that the existing lamp tube 123 usually adopts traditional luminescent materials, there are certain limitations in terms of brightness and color reproduction; rare earth elements are added to the light-emitting diode on the lamp tube 123; the rare earth elements include europium, terbium, and dysprosium rare earth elements, and the ratio of europium, terbium, and dysprosium rare earth elements is 36%, 40%, and 24%; the amount of rare earth elements added is 2.5% of the total weight of the resin material; improve brightness: rare earth elements can enhance the luminous intensity of light-emitting diodes, making the picture of the writing blackboard brighter. Improve color reproduction: rare earth elements can adjust the spectral distribution of light-emitting diodes to make the colors more vivid and realistic. Extend service life: rare earth elements have good stability and oxidation resistance, which can increase the service life of light-emitting diodes.

[0062] Although the present invention has been described in detail with reference to the aforementioned examples, it is still possible for those skilled in the art to make and modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery, comprising a housing (1), characterized in that: The shell (1) is rectangular in shape. The top surface of the shell (1) is provided with a first electrode plate groove (2) and a second electrode plate groove (3). The top surface of the shell (1) is provided with a receiving groove (4). The receiving groove (4) is connected to the first electrode plate groove (2). The receiving groove (4) is connected to the second electrode plate groove (3). A positive electrode plate (5) is provided in the first electrode plate groove (2). A negative electrode plate (6) is provided in the second electrode plate groove (3). A composite positive electrode (7), a solid electrolyte (8), and a composite negative electrode (9) are arranged from left to right in the receiving groove (4). The composite positive electrode (7) is in contact with the positive electrode plate (5), and the composite negative electrode (9) is in contact with the negative electrode plate (6). The side surfaces of the first electrode plate groove (2) and the second electrode plate groove (3) are provided with a plurality of electrodes. Grooves (10) are arranged at equal intervals from top to bottom; a spring sheet (11) is arranged in the groove (10); the spring sheet (11) is composed of a straight line segment (12) and an arc segment (13); the straight line segment (12) abuts against the groove (10); the arc segment (13) elastically squeezes the positive electrode plate (5) and the negative electrode plate (6); a cover (14) is arranged on the housing (1); a first through groove (16) and a second through groove (17) are arranged on the cover (14); a first insulating sleeve (18) is arranged in the first through groove (16); a positive electrode ear (19) is arranged on the first insulating sleeve (18); a second insulating sleeve (21) is arranged in the second through groove (17); a negative electrode ear (22) is arranged on the second insulating sleeve (21).

2. A battery according to claim 1, characterized in that: The side wall of the positive electrode ear (19) is provided with a first L-shaped groove (20) arranged symmetrically in the upper and lower directions, the first L-shaped groove (20) at the lower end is connected to the positive electrode plate (5), and the first L-shaped groove (20) at the upper end extends out of the cover (14); the side wall of the negative electrode ear (22) is provided with a second L-shaped groove (23) arranged symmetrically in the upper and lower directions, the second L-shaped groove (23) at the lower end is connected to the negative electrode plate (6), and the second L-shaped groove (23) at the upper end extends out of the cover (14).

3. A battery according to claim 2, characterized in that: The invention also comprises a box body (24), the box body (24) being a groove-shaped structure, the box body (24) having a flange (25), the flange (25) being provided with bolt holes (26), and a plurality of bolt holes (26) being arranged around the circumference of the flange (25); a box cover (28) being fixed to the bolt holes (26) by connecting bolts (27); a cable hole (30) being provided on a side wall of the box body (24); the box body (24) being used to place the batteries, the four batteries being connected in series via a connector (31), the positive and negative ends of the connector (31) being connected with a plug connector (32), the plug connector (32) being arranged on the cable hole (30); a buffer assembly (33) being provided on the box cover (28), the buffer assembly (33) being used to press and position the batteries.

4. A battery according to claim 3, characterized in that: The connector (31) comprises a first clamping plate (34) and a second clamping plate (35), the first clamping plate (34) and the second clamping plate (35) being connected together by a positioning bolt (36), the opposing surfaces of the first clamping plate (34) and the second clamping plate (35) having an open groove (37), a U-shaped conductive sheet (38) being provided in the open groove (37), the gap between the two U-shaped conductive sheets (38) being used to clamp the positive electrode ear (19) and the negative electrode ear (22); a copper bar (39) being provided between the U-shaped conductive sheet (38) and the first L-shaped groove (20), or a copper bar (39) being provided between the U-shaped conductive sheet (38) and the second L-shaped groove (23), and a power transmission cable (40) being provided on the copper bar (39).

5. A battery according to claim 3, characterized in that: The buffer assembly (33) comprises a retractor (41), a frame (42) is provided on the retractor (41), the frame (42) abuts against the battery, and a first spring (43) arranged in a matrix is ​​provided in the gap between the frame (42) and the box cover (28).

6. A battery according to claim 5, characterized in that: The telescopic device (41) comprises a first hinge seat (44) and a second hinge seat (45). The first hinge seat (44) is arranged on the box cover (28), and the second hinge seat (45) is arranged on the frame (42). A first connecting rod (46) and a second connecting rod (47) are hingedly connected to the first hinge seat (44). A third hinge seat (48) is hingedly connected to the free end of the first connecting rod (46). A first sliding block (49) is arranged on the third hinge seat (48). A first sliding groove (50) slidably connected to the first sliding block (49) is provided on the frame (42); a fourth hinge seat (51) is hingedly connected to the free end of the second connecting rod (47). A second sliding block (52) is arranged on the fourth hinge seat (51). A second sliding groove (53) slidably connected to the second sliding block (52) is provided on the frame (42); The third connecting rod (54) and the fourth connecting rod (55) are hingedly connected at the free end of the third connecting rod (54) with a fifth hinge seat (56), a third sliding block (57) is provided on the fifth hinge seat (56), and a third sliding groove (58) slidably connected to the third sliding block (57) is provided on the box cover (28); the free end of the fourth connecting rod (55) is hingedly connected with a sixth hinge seat (59), a fourth sliding block (60) is provided on the sixth hinge seat (59), and a fourth sliding groove (61) slidably connected to the fourth sliding block (60) is provided on the box cover (28); the waist of the first connecting rod (46) is rotatably connected to the first shaft rod (62), and the first shaft rod (62) is rotatably connected to the third connecting rod (54); the waist of the second connecting rod (47) is rotatably connected to the second shaft rod (63), and the second shaft rod (63) is rotatably connected to the fourth connecting rod (55).

7. A battery according to claim 6, characterized in that: The frame (42) is composed of four strips (64) connected end to end, and two vertical plates (65) are connected between the upper and lower strips (64) of the frame (42), and the first spring (43) is mounted on the two vertical plates (65), and the telescopic device (41) is mounted on the front and rear strips (64) of the frame (42); a plurality of shaped seats (66) are provided on the upper and lower strips (64) of the frame (42), and a long bolt (67) is provided in a recess of the plurality of shaped seats (66), and a threaded portion of the long bolt (67) extends out of the outer side of the box cover (28), and the long bolt (67) is slidably matched with the box cover (28), and an adjusting nut (68) is screwed on the threaded portion of the long bolt (67).

8. A battery according to claim 3, characterized in that: The box cover (28) is provided with a pressure box (69), the box cover (28) is provided with a first pipe opening (70), the first pipe opening (70) is provided with a first pipe head (71), the first pipe head (71) is fixed by a first limiting nut (72), the first pipe head (71) is provided with a one-way valve (73), and fire extinguishing material is injected into the pressure box (69) through the one-way valve (73); the pressure box (69) is provided with a second pipe opening (74), the second pipe opening (74) is provided with a second pipe head (75), the second pipe head (75) is fixed by a second limiting nut (76), and the second pipe head (75) is provided with an internal thread A groove (77) is provided on the internal thread groove (77), a blocking plate (78) is provided on the internal thread groove (77), and a pressure ring (79) for fixing the blocking plate (78) is screwed on the internal thread groove (77); a U-shaped seat (81) is provided on the pressure box (69), a guide seat (82) is provided on the U-shaped seat (81), a striker pin (83) is slidably connected to the guide seat (82), the tip of the striker pin (83) faces the blocking plate (78), the tail end of the striker pin (83) has a push portion (84), a second spring (85) is sleeved on the striker pin (83), and the second spring (85) is located between the guide seat (82) and the push portion (84) in an elastically connected manner.

9. A battery according to claim 3, characterized in that: The top surface of the box body (24) is provided with heat dissipation holes (86) arranged at equal intervals, and adjacent heat dissipation holes (86) at the bottom are connected in series via a U-shaped tube (87); and adjacent heat dissipation holes (86) at the top are connected in series via a U-shaped tube (87) to form a serpentine heat dissipation channel, wherein the heat dissipation holes (86) located at the front side are provided with an air inlet pipe (88), and the air inlet pipe (88) is provided with a blower (89), and the heat dissipation holes (86) located at the rear side are provided with an air outlet pipe (90).

10. A rare earth luminescent material writing blackboard using the battery according to any one of claims 1 to 9, comprising a back plate (112), characterized in that: A box (24) containing a battery, a reflective sheet (113), a light guide plate (114), a prism sheet (115), a diffuser sheet (116), a polarizer (117), a lower conductive film (118), a liquid crystal layer (119), an upper matte conductive film (120), and a front frame (121) are installed on the back plate (112) and are arranged from bottom to top. The liquid crystal layer (119) is connected to a control IC (122), and the control IC (122) is powered by a battery. A lamp tube (123) is connected to the side wall of the light guide plate (114). The liquid crystal layer (119) comprises a lower conductive layer (124), a cholesteric liquid crystal (125), a polymer (126), and an upper conductive layer (127) which are arranged from bottom to top.

Images