CN113689795A - Totally-shaded energy-saving display screen - Google Patents
Totally-shaded energy-saving display screen Download PDFInfo
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- CN113689795A CN113689795A CN202111052348.1A CN202111052348A CN113689795A CN 113689795 A CN113689795 A CN 113689795A CN 202111052348 A CN202111052348 A CN 202111052348A CN 113689795 A CN113689795 A CN 113689795A
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- display screen
- plate body
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
- H05K7/20963—Heat transfer by conduction from internal heat source to heat radiating structure
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Abstract
The invention discloses a common-cathode energy-saving display screen which comprises a main body consisting of a plurality of splice plates, wherein the splice plates are connected through a locking mechanism; the main body at least comprises a first plate body and a second plate body which are arranged in parallel; the locking mechanism comprises a matched piece and a fastening piece which are elastically connected; the fitting piece can be matched with the first plate body, the fastening piece can be matched with the second plate body, the fastening piece is connected with the locking assembly, and the fitting piece can rotate around the axis in the forward direction and is connected with the locking assembly; the engagement member is capable of counter-rotating about the axis and disengaging from the locking assembly. According to the invention, the first plate body and the second plate body are respectively connected with the fitting piece and the fastening piece, so that the first plate body and the second plate body can be detached from two sides, the installation space is saved, and the manpower and material resources are saved.
Description
Technical Field
The invention belongs to the technical field of a common-cathode display screen, and particularly relates to a common-cathode energy-saving display screen.
Background
Displays (displays) are also commonly referred to as monitors. The display is an I/O device belonging to a computer, namely an input/output device. The electronic document display tool is a display tool which displays a certain electronic document on a screen through a specific transmission device and reflects the electronic document to human eyes. According to different manufacturing materials, the method can be divided into the following steps: cathode ray tube displays (CRT), Plasma Displays (PDP), Liquid Crystal Displays (LCD), etc.
The utility model discloses a grant publication number is CN 213601531U's utility model discloses a locking structure and display screen, this locking structure includes screw subassembly and nut component, screw subassembly sets firmly on first connecting portion, nut component sets firmly on the second connecting portion, screw subassembly includes the screw pedestal, worm piece and the worm wheel of taking the handle hole, the worm wheel is installed respectively on the screw pedestal with worm piece, worm piece's one end meshes with the worm wheel and is connected, worm piece's the other end includes smooth surface shaft section at least and carries out the screw thread section that screw-thread fit locking is connected with nut component, set up along its axially extended spout in the smooth surface shaft section, still install on the screw pedestal and establish the complex spout round pin with spout slip card. The utility model discloses a can effectively solve current side lock structure operation inconvenient or the screw rod idling appears easily and causes the technical problem who skids.
The invention patent application with application publication number CN111997992A discloses a locking device, which comprises a first lock body and a second lock body; the first lock body comprises an angle wheel disc base, an angle wheel disc and a lock plate, the angle wheel disc can rotate around the axis of the angle wheel disc base, and the angle wheel disc base is provided with a first mounting surface for mounting the LED display screen; the second lock body comprises a fixed seat and a spring lock, and the fixed seat is provided with a limiting surface facing the end surface of one side of the angle wheel disc and a second mounting surface for mounting another LED display screen; a plurality of inclined planes are arranged on the end surface of one side of the angle wheel disc facing the limiting surface at intervals along the circumferential direction; the rotation angle rim plate can make spacing face and the laminating of different inclined planes to adjust the contained angle between first installation face and the second installation face, the spring lock can with the mutual locking of locking plate, fix first lock body and second lock body temporarily. The limiting surface is attached to different inclined surfaces through the rotating angle wheel disc, so that the included angle between the two LED display screens is changed, the splicing difficulty of the LED display screens is reduced, and the locking device is simple in structure and convenient to install.
Disclosure of Invention
The invention aims to provide a totally-shaded energy-saving display screen with the front and the back detachable and balanced heat dissipation.
The technical scheme adopted by the invention for realizing the purpose is as follows:
the shared-cathode energy-saving display screen comprises a main body consisting of a plurality of splice plates, wherein the splice plates are connected through a locking mechanism; the main body at least comprises a first plate body and a second plate body which are arranged in parallel; the locking mechanism comprises a matched piece and a fastening piece which are elastically connected; the fitting piece can be matched with the first plate body, the fastening piece can be matched with the second plate body, the fastening piece is connected with the locking assembly, and the fitting piece can rotate around the axis in the forward direction and is connected with the locking assembly; the engagement member is capable of counter-rotating about the axis and disengaging from the locking assembly.
By adopting the technical scheme, the first plate body and the second plate body are detachably connected through the locking mechanism, the first plate body is not directly connected with the fastener, and the first plate body can be detached from one side of the first plate body by removing the matching of the first plate body and the matching piece; and can also be detached from one side of the second plate body through the operation of gradually detaching the fasteners and the matching pieces. So, realize dismantling from both sides homoenergetic around, can reduce the demand to the space when the display screen installation, especially the back of display screen can reduce required headspace by a wide margin, reduces installation cost. In addition, the display screen can be dismantled from both sides clearance behind the past, and simple and convenient easy operation can practice thrift a large amount of manpower and materials resources. In addition, the heat of the inner space of the display screen can be conducted outwards through the matching piece and the fastening piece, and the heat dissipation efficiency is improved. The locking mechanism may also provide a support point for the display screen.
According to an embodiment of the present invention, the fitting member is internally provided with a positioning channel extending along the axis, the positioning channel penetrates through the fitting member, and the positioning channel is screwed with the first plate body by a bolt or a screw. From this, the fitting piece is connected with first plate body spiro union, connects stably, and it is convenient to dismantle.
According to one embodiment of the invention, the matching piece comprises a connector and a handle, a connecting shaft is connected between the connector and the handle, the locking assembly comprises an elastic piece, and the elastic piece is elastically connected with the tail end of the connector; the middle part of fastener disposes U type opening, and the connecting axle can block in U type opening to the fitting piece can be around the axis of connecting axle just reverse rotation, also can be along the axial back-and-forth movement of connecting axle.
Therefore, the locking or unlocking of the locking mechanism is realized through the movement of the connecting shaft relative to the U-shaped opening of the fastening piece, and the operation is simple and easy. The handle has a limiting function, and can prevent the matching piece from moving and transiting to derail from the U-shaped opening.
The elastic piece is a spring or an elastic gasket and the like, one end of the elastic piece is connected with the tail end of the connector, and the other end of the elastic piece is connected with the second plate body. Therefore, when the matching piece is matched with the fastening piece, the first plate body and the second plate body of the display screen can be locked through elastic deformation of the elastic piece.
According to one embodiment of the present invention, the locking assembly includes a first positioning groove disposed on the second plate, into which the fastening member can be inserted; the inside in first constant head tank disposes the second constant head tank, and the connector can be with second constant head tank joggle.
From this, can realize the fixed connection of fastener and second plate body through first constant head tank, the cooperation of rethread fitting piece and fastener realizes being connected of first plate body of display screen and second plate body. When dismantling from first plate body one side, can be through taking out the bolt in the location passageway and can be with first plate body and second plate body separation. When dismantling from second plate body one side, can take off the fastener earlier, be with the bolt separation in fitting piece and second constant head tank and the location passageway to can separate second plate body and first plate body.
According to one embodiment of the invention, the tail end of the connector is provided with a circular boss protruding outwards, the second positioning groove is internally provided with a positioning counter bore, the bottom of the positioning counter bore is provided with a through hole, and the circular boss can be matched with the positioning counter bore and enables the positioning channel and the through hole to be arranged coaxially.
From this, through the configuration of first constant head tank, second constant head tank, location counter bore, provide a multistage stair structure, can improve the cooperation precision of fitting piece and locking subassembly, take place the skew when preventing to cooperate.
According to an embodiment of the invention, the circular boss is provided with an external thread; the positioning counter bore is provided with an internal thread matched with the external thread.
The first plate body is provided with a dismounting hole with internal threads, and the bolt penetrates through the dismounting hole, the through hole and the positioning channel to be in threaded connection, so that the first plate body is fixedly connected with the matching piece. The fitting piece is connected with the positioning counter bore through threads, so that the first plate body is fixedly connected with the second plate body. When the first plate body is detached from one side, the bolt is firstly screwed out, and then the threaded connection between the circular boss and the positioning counter bore is released, so that the operation is convenient and easy.
According to one embodiment of the invention, a limiting ring is arranged on the periphery of the circular boss, and the limiting ring and the circular boss are coaxially arranged; be equipped with the clearance between spacing ring and the circular boss, the lateral wall of spacing ring disposes two outside outstanding cubic flanges, and the tank bottom edge of second constant head tank disposes two stoppers, and when the connector matches with the second constant head tank, cubic flange and stopper interval set up.
So, when the second constant head tank cooperation on connector and the second plate body, can carry on spacingly to blocky flange through two stoppers, can inject the rotation angle of fitting piece, prevent because of the locking that the excessive rotation of fitting piece leads to is not firm. Leave annular clearance between spacing ring and the circular boss, so when connector embedding second constant head tank, for the gas between circular boss and the second constant head tank provides compression space, delay the time of air current outdiffusion, and reduce the air current velocity of flow, can avoid the short time internal gas pressure too high, the inside gas of annular clearance can slowly outdiffusion, reduce the air current velocity of flow, realize the effect of slowly-releasing atmospheric pressure, can prevent that the air current from impacting harmfully etc. badly, the reinforcing is to locking mechanism and display screen main part inner structure's protection.
According to one embodiment of the invention, an arc-shaped sliding groove is arranged on the end surface, close to the handle, of the connecting head, the sliding groove and the connecting shaft are coaxially arranged, and the bottom surface of the sliding groove is a first inclined surface; the locking subassembly includes the sand grip, and the sand grip configuration is close to one side of connector on the fastener, and the terminal surface of sand grip is the second inclined plane, and the second inclined plane is parallel with first inclined plane and sets up relatively, and the sand grip can with spout joggle joint.
Therefore, the connection or separation between the fitting piece and the fastening piece can be realized through the matching between the convex strip and the sliding groove. Because fastener and second plate body accessible bolt fixed connection, can realize the fixed connection of circular boss and second plate body when sand grip and spout joggle. When the end face of the connecting head close to the handle is in clearance fit with the end face of the fastener, the convex strips can be embedded into the sliding grooves by rotating the fitting piece in the positive direction along the axis of the connecting shaft, so that the joggling of the fitting piece and the fastener is realized, the locking mechanism is locked, and the separation of the display screen main body can be prevented; the convex strips can be screwed out of the sliding grooves by reversely rotating the matching piece along the axis of the connecting shaft, so that the matching piece is separated from the fastening piece, the locking mechanism is unlocked, and the display screen main body can be detached.
Furthermore, two or more than two sliding grooves are formed in the connecting head, two or more than two raised lines are arranged on the fastening piece, and the raised lines correspond to the sliding grooves one to one. Therefore, the stability of the matched piece in joggling with the fastener can be enhanced, and the accidental separation is prevented.
According to one embodiment of the present invention, the positioning channel includes a circular channel disposed in the middle, the circular channel is configured with internal threads, and both ends of the circular channel are connected to a channel having a ridge.
The disassembling tool is provided with a prismatic rod body which can be matched with the edge-provided channel.
The internal thread in the circular channel is consistent with the internal thread in the dismounting hole, so that the dismounting hole can be matched with the positioning channel through one bolt, and the first plate body is locked with the matching piece.
The disassembly tool can be inserted into the positioning channel from the front side of the first plate body or the rear side of the second plate body, and the prismatic rod body of the disassembly tool is inserted into the prismatic channel. A rod-shaped disassembling tool can be inserted into the positioning channel, and the matching piece can rotate along with the disassembling tool. When the disassembling tool is rotated, the side wall of the prism-shaped rod body is contacted with the inner wall surface of the edge channel, so that the matching piece can be driven to rotate synchronously, the matching or the separation of the convex strip on the fastener and the sliding groove on the connector is realized, and the locking or the unlocking of the locking mechanism is realized.
Furthermore, the prismatic channel and the prismatic rod body are provided with the same number of side edges, the cross section of the prismatic channel is the same as the cross section of the prismatic rod body in shape, and the prismatic channel and the prismatic rod body are matched in size and specification. So, adopt extracting tool can realize the unblock to locking mechanism through simple interlude and rotation, easy and simple to handle, save the labour.
Further, first plate body and second body cooperate with two sets of locking mechanical system, and two sets of locking mechanical system set up the left and right sides at the display screen main part respectively to the symmetry sets up.
Further, the first plate body and the second body are matched with four groups of locking mechanisms, the four groups of locking mechanisms are respectively arranged at four corners of the display screen main body and the fixed back plate, and the four groups of locking mechanisms are arranged in a pairwise symmetry manner.
So, the locking mechanism through the symmetry setting can improve the plane degree of display screen, and the display screen atress is balanced, and the locking mechanism that the multiunit symmetry set up also has spacing effect to the display screen, can prevent arbitrary one end slope, avoids or weakens light scatter, prevents local image distortion, guarantees image display effect. The flatness of the display screen is high, the definition of images of a user can be guaranteed when the user watches at different visual angles, and user experience is improved. In addition, the multiple groups of locking mechanisms are symmetrically arranged, so that gaps between the display screen and the installation frame body can be reduced as much as possible under the condition of ensuring the flatness of the display screen, and the dustproof, waterproof and sealing effects are facilitated.
On the other hand, the improvement of the flatness is also beneficial to the uniform heat dissipation of the display screen. During the operation of the display screen, the distribution of the hot air flow generated inside the display screen is affected by the flatness of the display screen. Under the condition of unbalanced display screen, the hot air flow is unevenly distributed, so that the local heat dissipation efficiency is reduced, partial elements in the display screen are in a high-heat state for a long time, and the service life of the elements is influenced.
According to an embodiment of the present invention, a heat dissipation structure is disposed on a side of the second plate body away from the first plate body, the heat dissipation structure includes a plurality of heat dissipation strips and a heat dissipation plate, and fins are disposed on edges of the heat dissipation strips and the heat dissipation plate.
Furthermore, the plurality of heat dissipation strips extend up and down in the vertical direction in parallel or approximately parallel along the second plate body; the heating panel has 2 ~ 4, and the heating panel is located the intermediate position of second plate body, alternates between a plurality of radiating strips.
Therefore, the heat dissipation direction is adjusted and the heat dissipation space is divided through the matching of the heat dissipation strip and the heat dissipation plate. The display screen can be used for generating hot air which diffuses upwards when in operation, the vertically extending radiating strips can enhance the guiding effect on the hot air, the convex edges are arranged between the radiating strips, the diffusion of the hot air in the left and right directions in the space range of different radiating strips can be weakened, the hot air can flow downwards from bottom to top, the radiating is balanced, and the radiating efficiency is improved. Because the back of the display screen is often matched with structures such as a wall body, a fixing plate and the like during installation, the heat dissipation rate of the inner position of the display screen is lower than that of the edge position of the display screen, and the heat dissipation plate is arranged in the middle of the second plate body, so that the inner hot air is diffused in a wider space range, and the heat dissipation efficiency is improved.
On the other hand, the combination of the heat dissipation strips, the heat dissipation plate and the convex ribs can also strengthen the supporting effect on the back surface of the display, has a certain buffering effect on impact of external collision and the like, and reduces the risk of damage of internal elements of the display.
In addition, the heat dissipation strips, the heat dissipation plates and the convex ribs are further favorable for guiding the noise of the internal elements of the display screen to the back of the display screen, the noise energy can be weakened to be transmitted to the front side of the display screen, and the protection effect on the main body of the display screen is enhanced.
Further, the heat dissipation strip is provided with a bending part.
Furthermore, the inside of heating panel also can set up the bead, and the inside bead of heating panel be a plurality of closed structures, and the heat dissipation space of establishing a plurality of endotheca is split into with the heating panel to the endotheca in a plurality of closed beads.
Therefore, the heat dissipation space and the heat dissipation angle are diversified, and the attractiveness of the second plate body can be improved.
According to an embodiment of the present invention, a plurality of reinforcing ribs are disposed on one side of the second plate body close to the first plate body, and the plurality of reinforcing ribs are arranged in a criss-cross manner.
Therefore, the heat dissipation space can be divided by the reinforcing ribs, dust particles are prevented from being attached to the circuit board or the circuit element due to the fact that the air flow range inside the display screen is large and the air flow speed is too high, and the service life is prolonged.
Further, at least part of the reinforcing ribs are provided with gaps with the second plate body. Therefore, the micro-circulation of air flow in a part of heat dissipation space can be ensured, and the local air pressure is prevented from being too high.
According to an embodiment of the present invention, a protruding portion is disposed on a side of the second board body away from the first board body, and the protruding portion has a hollow structure.
So, the display screen is convenient for hold as the handrail to the protruding portion, is convenient for take of display screen. In addition, the protruding part protruding outwards can also play the guard action of crashproof. The hollow inside of the protruding part can also enhance the heat dissipation effect.
According to an embodiment of the present invention, the protruding portion is a block structure, and a baffle is connected to an end of the protruding portion away from the display screen main body, and the baffle is parallel to the second plate.
Therefore, the baffle can form guide airflow at the rear side of the display screen, the airflow at the rear side of the display screen is improved to flow, and a better heat dissipation effect and heat conduction are achieved; on the other hand, the protection effect can be improved.
According to the invention, the locking mechanism with the matching piece matched with the fastener is adopted, so that the display screen can be disassembled from the front side and the rear side, and the space on the back side of the display screen can be greatly reduced during installation. The locking mechanism is easy to lock and unlock, the display screen is easy and convenient to disassemble and operate, and the cost of manpower and material resources can be saved. In addition, the cooperation of heat dissipation strip, heating panel and sand grip on the fixed backplate surface and the inside strengthening rib structure of fixed backplate all can realize improving the effect of radiating efficiency. Therefore, the invention is a totally-shaded energy-saving display screen with the front and the back detachable and balanced heat dissipation.
Drawings
Fig. 1 is a rear view of a common-cathode energy-saving display screen according to embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of portion A of FIG. 2;
fig. 4 is a schematic structural diagram of a fixing back plate of the common cathode energy-saving display screen shown in fig. 1;
FIG. 5 is a partial enlarged view of portion C of FIG. 4;
FIG. 6 is a schematic view of the internal structure of the fixed backplate shown in FIG. 4;
FIG. 7 is a schematic perspective view of a mating member of the energy-saving display panel shown in FIG. 1;
FIG. 8 is a front view of the mating member of FIG. 7;
FIG. 9 is a cross-sectional view of the mating member of FIG. 8 taken along line D-D;
fig. 10 is a side view of a common cathode energy-saving display screen according to embodiment 2 of the present invention;
FIG. 11 is a schematic perspective view of a mating member according to example 2 of the present invention;
FIG. 12 is a schematic perspective view of a fastener according to example 2 of the present invention;
FIG. 13 is an elevation view showing the engagement of a mating member with a fastener according to embodiment 2 of the present invention;
FIG. 14 is a cross-sectional view of the fitting and fastener of FIG. 13 taken along line E-E;
reference numerals: a display panel 10; a transition plate 20; a removal hole 21; a fixed back plate 30; a first positioning groove 301; a second positioning groove 302; positioning a counter bore 303; a through-hole 304; a stop block 305; the heat dissipation bars 31; a bent portion 311; a heat dissipation plate 32; a rib 33; a reinforcing rib 34; a protrusion 35; a fan 36; a baffle 37; a locking mechanism 40; a fitting 50; a connector 51; a handle 52; a connecting shaft 53; a circular boss 511; a stop collar 512; block flanges 513; a chute 514; a first ramp 515; a positioning channel 54; a circular channel 541; a ribbed channel 542; an elastic member 55; a fastener 60; a U-shaped opening 61; a rib 62; a second inclined surface 63.
Detailed Description
In the following, the embodiments of the present invention will be described in detail with reference to the drawings in the following, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solution of the present invention is further described in detail below with reference to the following detailed description and the accompanying drawings:
example 1:
fig. 1 to 9 schematically show a cathode-sharing energy-saving display panel according to an embodiment of the present invention. As shown in the figure, the device comprises a display screen main body and a locking mechanism 40, wherein the display screen main body comprises a display panel 10, a transition plate 20 and a fixed back plate 30 which are arranged in parallel, wherein the transition plate 20 is a first plate body and is a circuit board, and the fixed back plate 30 is a second plate body; the display screen main part is connected with the power box and the control module in a pairwise manner, and image information displayed by the display screen main part can be adjusted through the control module. The display screen main body is matched with the four groups of locking mechanisms 40, and the display screen main body can be detached from the front side and the rear side.
Specifically, the display panel 10, the transition plate 20, and the fixing back plate 30 are connected in sequence from front to back. The four groups of locking mechanisms 40 are respectively matched with the fixed back plate 30 and the transition plate 20 from four corners of the display screen main body.
The locking mechanism 40 includes a fitting 50 and a fastener 60. The fitting 50 includes a circular connector 51, a handle 52 and an elastic member 55, a connecting shaft 53 horizontally disposed is connected between the connector 51 and the handle 52, a circular boss 511 protruding outward is configured at the end of the connector 51, the elastic member 55 is an elastic pad with a hole, one end face of the elastic member 55 is connected with the end face of the circular boss 511, and the other end extends in a direction away from the fitting 50. The fastening member 60 is a plate with a U-shaped opening 61, the U-shaped opening 61 is disposed in the middle of the fastening member, and the connecting shaft 53 can be sleeved in the U-shaped opening 61, can move back and forth in the U-shaped opening 61, and can also rotate in the U-shaped opening 61 in the circumferential direction.
The fixed back plate 30 is provided with a locking assembly which comprises a first positioning groove 301, the first positioning groove 301 is arranged on one side, far away from the transition plate 20, of the fixed back plate 30, and the fastening piece 60 can be embedded into the first positioning groove 301; the fastener 60 is provided with positioning holes at both sides of the U-shaped opening 61, and the first positioning groove 301 is provided with bolt holes corresponding to the positioning holes, so that the fastener 60 can be fixed in the first positioning groove 301 by bolts. Generally, the U-shaped opening 61 for holding the fastener 60 is disposed upward during the fixing installation, so as to enhance the supporting function of the fitting member 50. The locking assembly also includes a resilient member 55 to enhance the locking action.
A second positioning groove 302 is disposed inside the groove bottom of the first positioning groove 301, and the groove bottom of the second positioning groove 302 extends toward the transition plate 20. The connector 51 can be embedded into the second positioning groove 302, the positioning counter bore 303 is arranged in the second positioning groove 302, an internal thread is arranged on the inner side wall of the second positioning groove 302, an external thread corresponding to the external thread is arranged on the side wall of the circular boss 511, when the connector 51 is matched with the second positioning groove 302, the circular boss 511 is in threaded connection with the positioning counter bore 303, the elastic piece 55 is an elastic gasket with a hole, one end face of the elastic piece 55 is connected with the end face of the circular boss 511, the other end of the elastic piece extends towards the direction far away from the fitting piece 50, the elastic piece 55 elastically deforms between the bottom face of the positioning counter bore 303 and the end face of the circular boss 511, and the depth of the positioning counter bore 303 is larger than the height of the circular boss 511, so that when the fitting piece 50 moves back and forth in the U-shaped opening 61 of the fastener 60, the guide can be carried out in a certain range, and the fitting piece 50 is prevented from offsetting.
The bottom of the positioning counterbore 303 is provided with a through hole 304, and the fitting 50 is internally provided with a positioning passage 54, the positioning passage 54 extending in the axial direction of the connecting shaft 53 and penetrating through the fitting 50. When the connector 51 is engaged with the second positioning slot 302, the positioning channel 54 is coaxially disposed with the through hole 304 and the hole of the elastic member 55. The transition plate 20 is provided with a dismounting hole 21, and the dismounting hole 21 is arranged corresponding to the through hole 304. The use of a rod-like removal tool can cooperate with the positioning channel 54 to effect unlocking of the locking structure.
The positioning channel 54 includes a circular channel 541, the circular channel 541 is configured with internal threads, the dismounting hole 21 is provided with a threaded hole having the same specification as the circular channel 541, and the circular channel 541 and the dismounting hole 21 can be fixedly connected through a bolt. The screw of the bolt passes through the dismounting hole 21 and the through hole 304 in sequence and is in threaded connection with the circular channel 541. In this manner, the display main body, particularly the transition plate 20, is coupled to the stationary backplate 30 by the locking mechanism 40.
When the display panel 10 is detached from one side, the display panel 10 is separated from the transition plate 20, and then the transition plate 20 is separated from the fixed back plate 30 only by screwing out the bolts in the detaching holes 21. When the fixing back plate 30 is disassembled, the fastening member 60, the fitting member 50 and the fixing back plate 30 are respectively removed, so that the transition plate 20 can be separated from the fixing back plate 30. The front and the back of the two sides of the dismounting are simple, convenient and easy to operate, and a large amount of manpower and material resources can be saved. In addition, both sides can be dismantled around, can reduce the demand to the space when the display screen installation, and especially the back of display screen can reduce required headspace by a wide margin, reduces installation cost.
In addition, the transition plate 20 and the fixed back plate 30 are simultaneously matched with the four groups of locking mechanisms 40, and the four groups of locking mechanisms 40 are symmetrically arranged in pairs at four angles, so that the flatness of the display screen can be improved, the definition of images when a user watches at different visual angles can be ensured, and the user experience is improved; in addition, the display screen is favorable for uniform heat dissipation and local overheating prevention. The symmetrically arranged locking mechanisms 40 can ensure balanced stress, and prevent inclination and deviation.
On the connecting head 51, a limiting ring 512 is further arranged on the periphery of the circular boss 511, the limiting ring 512 and the circular boss 511 are coaxially arranged, an annular gap is formed between the limiting ring 512 and the circular boss 511, two block-shaped flanges 513 protruding outwards are arranged on the outer side wall of the limiting ring 512, two limiting blocks 305 are arranged on the bottom edge of the second positioning groove 302, and when the connecting head 51 is matched with the second positioning groove 302, the block-shaped flanges 513 and the limiting blocks 305 are arranged at intervals. When the connector 51 is matched with the second positioning groove 302 on the fixed back plate 30, the blocky flange 513 can be limited by the two limiting blocks 305, so that the rotation angle of the fitting piece 50 can be limited, the locking caused by the self-rotation of the fitting piece 50 is prevented from being infirm, and the accidental falling is avoided.
An annular gap is reserved between the limiting ring 512 and the circular boss 511, so that a compression space is provided for gas between the circular boss 511 and the second positioning groove 302, excessive gas flow impact is prevented, and the protection of the locking mechanism 40 and the internal structure of the display screen is enhanced.
One side of the fixed back plate 30, which is far away from the transition plate 20, is provided with a heat dissipation structure, the heat dissipation structure comprises a plurality of heat dissipation strips 31 and two rhombic heat dissipation plates 32, and the edges of the heat dissipation strips 31 and the heat dissipation plates 32 are both provided with convex ribs 33.
The heat dissipation strips 31 extend vertically approximately to divide the heat dissipation space outside the fixed back plate 30, and the diffusion rate of the hot air flow generated inside the display screen from bottom to top is further increased under the guiding action of the edge ribs 33.
Two heat dissipation plates 32 are arranged in the middle of the fixed back plate 30, the width of the heat dissipation plate 32 is larger than that of the heat dissipation strips 31, and one heat dissipation plate 32 spans a plurality of heat dissipation strips 31, so that internal hot air is diffused in a wider space range, and the defect of low internal heat dissipation rate is overcome. Two fans 36 are also provided on the stationary backplate 30, the fans 36 being mounted at the positions of the heat dissipation plates 32. Thus, the fan 36 blows air to greatly improve the heat dissipation efficiency.
The heat dissipation bar 31 is also provided with a bent portion 311. The heat dissipation plate 32 is provided with a plurality of ribs 33 which are closed to form a diamond shape, and the heat dissipation plate 32 is divided into a plurality of heat dissipation spaces which are internally and externally sleeved by the plurality of closed ribs 33. Therefore, the heat dissipation space and the heat dissipation angle are diversified. In addition, the rib 33 between the heat dissipation strip 31 and the heat dissipation plate 32 forms stripe lines on the fixing nail back plate, so that the fixing nail back plate is convenient to grab and attractive and elegant.
A plurality of reinforcing ribs 34 are arranged on one side of the fixed back plate 30 close to the transition plate 20, and the plurality of reinforcing ribs 34 are arranged in a criss-cross manner. The heat dissipation space can be divided by the reinforcing ribs 34, so that dust particles are prevented from being attached to a circuit board or a circuit element due to the fact that the air flow range inside the display screen is large and the air flow speed is too high, and the service life is prolonged.
A protrusion 35 is disposed on a side of the fixed back plate 30 away from the transition plate 20, and the protrusion 35 is a hollow structure. The protruding portion 35 can be used as a handrail to facilitate holding and taking of the display screen. In addition, the outwardly protruding protrusion 35 can also serve as a protection against collision. The hollow inside of the protrusion 35 can also enhance the heat dissipation effect.
Example 2:
fig. 10 to 14 schematically show a common-cathode energy-saving display panel according to an embodiment of the present invention, which is different from example 1 in that:
the end of connector 51 remote from handle 52 is not externally threaded, nor is positioning counterbore 303 internally threaded. The elastic member 55 is a spring. When assembled, the central axis of the elastic member 33 coincides with the central axis of the positioning passage 54.
The locking assembly includes a rib 62 disposed on the fastener. Specifically, two arc-shaped sliding grooves 514 which are symmetrical around the center of the connecting shaft 53 are arranged on the end surface, close to the handle 52, of the connecting head 51, the sliding grooves 514 and the connecting shaft 53 are arranged coaxially, the bottom surface of each sliding groove 514 is a first inclined surface 515, an included angle is formed between each first inclined surface 515 and the end surface of the connecting head 51, and one end of each first inclined surface 515 is connected with the end surface of the connecting head 51; two arc-shaped convex strips 62 with symmetrical centers are arranged on one side of the fastener 60, the end faces of the convex strips 62 are second inclined faces 63, and when the fastener 60 is matched with the connecting shaft 53, the first inclined faces 515 and the second inclined faces 63 are parallel and oppositely arranged. When the end surface of the connecting head 51 close to the handle 52 is in clearance fit with the end surface of the fastener 60, the convex strip 62 can be inserted into or slid out of the sliding groove 514 by rotating the fitting piece 50 around the axis of the connecting shaft 53 in the forward direction or the reverse direction, the first inclined surface 515 and the second inclined surface 63 are in surface contact with each other or separated from each other, and the fitting piece 50 is joggled or separated from the fastener 60, so that the locking mechanism 40 is locked or unlocked.
A step part is arranged at the joint of the positioning counter bore 303 and the second positioning groove 302, an annular flange is arranged on the circular boss 511, and when the circular boss 511 is in threaded connection with the positioning counter bore 303, the annular boss is in contact with the step part. Thus, the engagement points are increased, the contact area between the fitting piece 50 and the fixing back plate 30 is increased, the stability of the locking mechanism 40 can be enhanced, and the locking mechanism can be further prevented from falling off.
The positioning channel 54 includes a circular channel 541 at the center and ribbed channels 542 at both ends of the circular channel 541; the circular channel 541 arranged in the middle is provided with internal threads, the dismounting hole 21 is provided with a threaded hole with the same specification as the dismounting hole, and the circular channel 541 and the dismounting hole 21 can be fixedly connected through a bolt. The screw of the bolt passes through the dismounting hole 21, the through hole 304, the ribbed channel 542 near one side of the transition plate 20 and is in threaded connection with the circular channel 541. In this manner, the display main body, particularly the transition plate 20, is coupled to the stationary backplate 30 by the locking mechanism 40.
The removal tool includes a prismatic shaft that can be inserted through the positioning channel 54 and mated with the ribbed channel 542. Specifically, the prismatic channel 542 has 4 edges, and the cross section of the prismatic channel is square, and the prismatic rod body of the disassembling tool is a regular quadrangular prism, and the cross section of the prismatic channel is square corresponding to the cross section of the prismatic channel 542. The prismatic rod body of the disassembling tool is inserted into the positioning channel 54, and the two are in surface contact.
When the display panel 10 is detached from one side of the display panel 10, the display panel 10 is separated from the transition plate 20, and then the bolts in the detaching holes 21 are unscrewed, so that the transition plate 20 is separated from the fixed back plate 30. When the removal tool is inserted into the positioning channel 54 of the fitting member 50 through the through hole 304, the prismatic rod is tightly fitted with the ribbed channel 542, and the removal tool is rotated to drive the fitting member 50 to rotate, so that the protruding strip 62 on the fastening member 60 is screwed out from the sliding groove 514 on the connecting head 51, thereby unlocking the fitting member 50 and the fastening member 60.
One side that is close to U-shaped opening 61 on first constant head tank 301 is equipped with the breach, because the U-shaped opening 61 of fastener 60 sets up upwards during the installation, and the breach sets up the last bead mouth at first constant head tank 301 promptly. The size of the notch is equivalent to the size of the connector 51. In this way, when disassembling, after the mating member 50 and the fastening member 60 are unlocked, the connecting shaft 53 can be separated from the U-shaped opening 61 by moving downward and slightly tilting the fixing back plate 30, so that the fixing back plate 30 and the fastening member 60 can be taken out from the mating member 50.
The protruding portion 35 is a block-shaped structure, one end of the protruding portion 35 away from the transition plate 20 is connected with a baffle 37, and the baffle 37 is parallel to the fixed back plate 30. The baffle 37 can form guide airflow at the rear side of the display screen, so that the airflow at the rear side of the display screen is improved to play a better heat dissipation effect and heat conduction; on the other hand, the protection effect can be improved.
Example 3
This embodiment is a common-cathode energy-saving display screen according to another embodiment of the present invention, a main body of which includes a first plate body and a fixed back plate 30 that are spliced and combined, wherein both the first plate body and the fixed back plate 30 are matched with a locking mechanism 40;
the locking mechanism 40 comprises a fitting piece 50 and a fastener 60, the fitting piece 50 comprises a connecting head 51 and a handle 52, a connecting shaft 53 is connected between the connecting head 51 and the handle 52, a circular boss 511 protruding outwards is arranged at the tail end of the connecting head 51, a U-shaped opening 61 is arranged in the middle of the fastener 60, and the U-shaped opening 61 is matched with the connecting shaft 53;
a first positioning groove 301 is configured on one side of the fixed back plate 30 away from the first plate body, and the fastener 60 can be embedded into the first positioning groove 301; a second positioning groove 302 is arranged in the first positioning groove 301, a positioning counter bore 303 is arranged in the second positioning groove 302, a through hole 304 is arranged at the bottom of the positioning counter bore 303, and the connector 51 can be matched with the second positioning groove 302;
a positioning channel 54 is arranged inside the fitting 50, and the positioning channel 54 extends in the axial direction of the connecting shaft 53 and penetrates through the fitting 50; when the connector 51 is matched with the second positioning groove 302, the positioning channel 54 is coaxial with the through hole 304, and the circular boss 511 is fixedly connected with the fixed back plate 30;
the first plate body is provided with a dismounting hole 21, and the dismounting hole 21 is arranged corresponding to the through hole 304; the dismounting hole 21 and the positioning passage 54 are connected by bolts.
The above description is only a part of or preferred embodiments of the present invention, and neither the text nor the drawings should be construed as limiting the scope of the present invention, and all equivalent structural changes, which are made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A common-cathode energy-saving display screen comprises a main body consisting of a plurality of splicing plates, wherein the splicing plates are connected through a locking mechanism (40); it is characterized in that the preparation method is characterized in that,
the main body at least comprises a first plate body and a second plate body which are arranged in parallel; the locking mechanism (40) comprises a matched piece (50) and a fastening piece (60) which are elastically connected; the fitting piece (50) can be matched with the first plate body, the fastener (60) can be matched with the second plate body, the fastener (60) is connected with the locking assembly, and the fitting piece (50) can rotate around the axis in the positive direction and is connected with the locking assembly; the engagement member (50) is capable of counter-rotating about an axis and disengaging from the locking assembly.
2. The cathode-sharing energy-saving display screen according to claim 1, wherein the fitting member (50) is internally provided with a positioning channel (54) extending along an axis, the positioning channel (54) penetrates through the fitting member (50), and the positioning channel (54) is in threaded connection with the first plate body.
3. The common-cathode energy-saving display screen according to claim 1 or 2, wherein the matching element (50) comprises a connecting head (51) and a handle (52), a connecting shaft (53) is connected between the connecting head (51) and the handle (52), the locking assembly comprises an elastic member (55), and the elastic member (55) is elastically connected with the connecting head (51);
the middle part of the fastener (60) is provided with a U-shaped opening (61), the connecting shaft (53) can be clamped in the U-shaped opening (61), and the matching piece can rotate around the axis of the connecting shaft (53) in the positive and negative directions and can also move back and forth along the axial direction of the connecting shaft (53).
4. A cathode energy saving display screen according to claim 3, wherein the locking assembly comprises a first positioning groove (301) arranged on the second plate body, the fastening member (60) can be inserted into the first positioning groove (301);
the inside configuration of first constant head tank (301) has second constant head tank (302), connector (51) can with second constant head tank (302) joggle.
5. The energy-saving display screen as claimed in claim 4, wherein the end of the connector (51) is configured with a circular boss (511) protruding outwards, the second positioning slot (302) is configured with a positioning counter bore (303), the bottom of the positioning counter bore (303) is configured with a through hole (304), and the circular boss (511) can be matched with the positioning counter bore (303) and enables the positioning channel (54) and the through hole (304) to be arranged coaxially.
6. A co-cathode energy-saving display screen according to claim 5, characterized in that the circular boss (511) is configured with an external thread; the positioning counter bore (303) is provided with an internal thread matched with the external thread.
7. A totally-enclosed energy-saving display screen as claimed in claim 5, characterized in that the periphery of the circular boss (511) is provided with a spacing ring (512), and the spacing ring (512) is coaxially arranged with the circular boss (511);
spacing ring (512) with be equipped with the clearance between circular boss (511), the lateral wall of spacing ring (512) is configured with two outside outstanding cubic flanges (513), the tank bottom edge of second constant head tank (302) is configured with two stopper (305), when connector (51) with second constant head tank (302) cooperate, cubic flange (513) with stopper (305) interval sets up.
8. The energy-saving display screen with common cathode according to claim 3, wherein an arc-shaped sliding groove (514) is arranged on the end surface of the connector (51) close to the handle (52), the sliding groove (514) and the connecting shaft (53) are coaxially arranged, and the bottom surface of the sliding groove (514) is a first inclined surface (515);
the locking subassembly includes sand grip (62), sand grip (62) configuration is in be close to on fastener (60) one side of connector (51), the terminal surface of sand grip (62) is second inclined plane (63), second inclined plane (63) with first inclined plane (515) parallel and relative setting, sand grip (62) can with spout (514) joggle.
9. The energy-saving display screen as recited in claim 2, wherein the positioning channel (54) comprises a circular channel (541) disposed in the middle, the circular channel (541) is configured with internal threads, and both ends of the circular channel (541) are connected with a channel (542) having ribs.
10. The cathode-sharing energy-saving display screen according to claim 1, wherein a heat dissipation structure is disposed on a side of the second board body away from the first board body, the heat dissipation structure comprises a plurality of heat dissipation strips (31) and heat dissipation plates (32), and edges of the heat dissipation strips (31) and the heat dissipation plates (32) are both configured with ribs (33);
a plurality of reinforcing ribs (34) are arranged on one side, close to the first plate body, of the second plate body, and the reinforcing ribs (34) are arranged in a criss-cross mode;
one side of the second plate body, which is far away from the first plate body, is provided with a protruding part (35), and the protruding part (35) is of a hollow structure.
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| JPH11249584A (en) * | 1998-03-02 | 1999-09-17 | Matsushita Electron Corp | Mounting structure of display panel in picture display |
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