CN113613442B - Small UWB positioning card - Google Patents
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- CN113613442B CN113613442B CN202110978444.2A CN202110978444A CN113613442B CN 113613442 B CN113613442 B CN 113613442B CN 202110978444 A CN202110978444 A CN 202110978444A CN 113613442 B CN113613442 B CN 113613442B
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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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
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Abstract
The invention belongs to the field of electronic equipment, and particularly relates to a UWB (ultra-wideband) small positioning card which comprises a card shell and a circuit board, wherein the card shell comprises an upper shell and a lower shell, fixed blocks are fixedly connected at four corners of the upper shell and the lower shell, elastic telescopic rods are fixedly connected at four corners of the upper shell and the lower shell, springs are sleeved outside the elastic telescopic rods, the elastic telescopic rods are positioned inside elastic cavities, the outer sides of buffer plates are attached to the inner wall of the elastic cavities, stepped grooves are formed in the upper shell and the lower shell, the stepped grooves form accommodating grooves after the upper shell and the lower shell are combined, the circuit board is fixedly connected inside the accommodating grooves, rubber sheets are bonded on the opposite side surfaces of the upper shell and the lower shell, extrusion cavities are formed in the rubber sheets, and convex strips are fixedly connected to the inner wall of the card shell; according to the invention, the anti-falling performance of the four corners and the edge parts of the clamping shell is enhanced by installing the fixing blocks and the raised lines, and the circuit board is ensured to be fixed in the clamping shell by installing the rubber sheets.
Description
Technical Field
The invention belongs to the field of electronic equipment, and particularly relates to a UWB (ultra wide band) small positioning card.
Background
The UWB positioning card is a card type beacon developed based on UWB technology and used for positioning personnel, the card label can send pulse information to a positioning base station according to a set communication frequency, so that the real-time accurate positioning of the personnel is realized, the positioning card mainly transmits positioning pulses, and after the positioning base station receives the positioning pulses, data is sent to a server positioning engine for settlement, so that position coordinates are obtained; the card based on the UWB positioning technology can realize the real-time positioning precision of about 10 cm, and is a high-precision positioning technology which is relatively universal in the field of outdoor positioning at present; at present, the positioning card is mainly connected by buckling, and the scattered state of the shell is easy to appear after the positioning card drops, so that the internal electronic component is damaged, and the positioning card can not be reused.
The prior art also has some technical solutions related to the falling prevention of electronic devices, for example, chinese patent application No. 201510530535.4 discloses a falling prevention electronic device, which determines the state of the electronic device by a controller, and then sends a control signal to an adjusting mechanism, and the gravity distribution of a main body is adjusted by the adjusting mechanism, so that the included angle between the surface of the main body and the ground is smaller than a preset angle when the falling prevention electronic device falls to the ground, and further the surface of the device contacts with the ground, thereby ensuring the operation of a circuit board, but in the implementation process, because more metal balls are added in the adjusting mechanism to change the falling gravity center of the device, the weight of the device itself is increased, and the impact resistance of the electronic device itself in the document is not relatively improved, so that the connection part of the device is broken when the device itself contacts with the ground due to the influence of gravity acceleration, and the circuit board falls out of the shell to be in contact with the ground, so that electronic components on the circuit board are damaged, and the electronic device cannot run.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problem that an internal circuit board cannot normally operate because an outer shell is easy to disperse after an electronic device falls from a high place and contacts with the ground, the invention provides a UWB small positioning card.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a UWB small-sized positioning card, which comprises a card shell and a circuit board, wherein the card shell comprises an upper shell and a lower shell, four corners of the upper shell and the lower shell are fixedly connected with fixed blocks, the fixed blocks are fixedly arranged on the card shell through an adhesive, an elastic cavity is arranged inside the fixed blocks, four corners of the upper shell and the lower shell are fixedly connected with elastic telescopic rods, the elastic telescopic rods are positioned inside the elastic cavities, springs are sleeved outside the elastic telescopic rods, one ends of the springs, far away from the elastic cavities, are fixedly connected with the card shell, one ends of the elastic telescopic rods, far away from the card shell, are fixedly connected with buffer plates, one ends of the springs, far away from the card shell, are fixedly connected with the buffer plates, the outer sides of the buffer plates are attached to the inner wall of the elastic cavity, stepped grooves are arranged inside the upper shell and the lower shell, and the stepped grooves form accommodating grooves after the upper shell and the lower shell are combined, the circuit board is fixedly connected inside the accommodating groove, rubber sheets are bonded on the opposite side surfaces of the upper shell and the lower shell, when the upper shell and the lower shell are combined to form a clamping shell, the rubber sheets on the upper shell and the lower shell are contacted with each other and extruded, an extrusion cavity is formed inside each rubber sheet, the thickness of the side wall, close to the inside of the clamping shell, of the extrusion cavity is smaller than that of the side wall, far away from the inside of the clamping shell, of the extrusion cavity, a raised line is fixedly connected to the inner wall of the clamping shell, a buffer cavity is formed inside each raised line, and each raised line is made of soft rubber;
when the positioning card is in work, when the upper shell and the lower shell are buckled, the space of the extrusion cavity is reduced and the internal pressure is increased when the extrusion cavity in the rubber sheet is buckled, so that the rubber sheet expands towards the side wall in the card shell to extrude the circuit board in the card shell, and the circuit board is more fixed in the card shell, so that the circuit board does not shake violently when the card shell is impacted, the damage of the impact on electronic components on the circuit board is reduced, and the normal work of the positioning card is ensured; when the positioning card drops carelessly, the four corners of the positioning card are in contact with the ground, the fixed block applies extrusion force to the direction of the corner of the card shell in contact with the ground under the influence of the impact force of the fixed block to extrude the elastic cavity, the buffer plate drives the elastic telescopic rod to move towards the direction of the card shell under the influence of the extrusion force of the fixed block, and the elastic telescopic rod resets under the influence of the spring when the impact force disappears, so that the damage of the impact force to the four corners of the positioning card is reduced, and the operation of electronic components in the positioning card is ensured; when the four sides of the clamping shell are impacted, the convex strips on the inner wall of the clamping shell buffer the impact force, so that the damage of the impact force to the circuit board is reduced, and the normal operation of the circuit board is protected.
Preferably, the four corners and the middle positions of the four sides of the side surface of the upper shell facing the lower shell are fixedly connected with connectors, the four corners and the middle positions of the four sides of the side surface of the lower shell facing the upper shell are provided with fixing holes which are in one-to-one correspondence with the connectors, the depth of each fixing hole is smaller than the thickness of the lower shell, the rubber sheet is provided with through holes which are in one-to-one correspondence with the fixing holes, the inner wall of each fixing hole is fixedly connected with a blocking piece, one end, away from the inner wall of each fixing hole, of each blocking piece is obliquely directed to the bottom of the corresponding fixing hole, and each blocking piece is made of elastic plastic materials;
when the clamping shell is impacted during working, because the upper shell and the lower shell are in a buckling state, the buckling position between the upper shell and the lower shell is influenced by impact force generated by falling when the clamping shell is impacted, so that the upper shell and the lower shell are separated; when the upper shell is impacted, the upper shell drives the connector to be separated from the fixing hole of the lower shell under the influence of impact force, and when the connector is separated, the large head part of the connector cannot be separated under the influence of the blocking piece, so that the connector and the blocking piece are relatively extruded when the shell is impacted, the impact force of the ground on the shell is reduced, the upper shell and the lower shell are not easy to separate, and electronic components in the clamping shell are prevented from being damaged; in long-term use, the rubber sheet that glues on upper housing and the lower casing is lost viscosity to easily deviate from when the card shell receives the offend, because the closely connected of connector and fixed orifices has slowed down the possibility of the deviation of rubber sheet this moment, guarantee the fixed of circuit board.
Preferably, a metal rod is embedded in the connector, the metal rod is T-shaped, and the transverse part of the metal rod is positioned in the side wall of the upper shell;
the during operation, because the connector is plastic goods, the fracture appears easily when the card shell receives the impact, after the connector fracture, can lead to between casing and the lower casing not hard up, lead to directly separating even between casing and the lower casing, finally influence the combination compactness between the card shell, greatly reduced the impact resistance of card shell, at the connecting portion embedding metal pole of connector and last casing, when receiving the impact, because the influence of metal pole makes the joint strength between connector and the last casing improve, thereby reduce the cracked possibility of connector, guarantee the compactness of card shell.
Preferably, the upper surface and the lower surface of the circuit board are both fixedly connected with elastic plastic nets, the elastic plastic nets are integrally arched, the middle parts of the elastic plastic nets are not contacted with the electric elements on the circuit board, and the tops of the arched parts on the elastic plastic nets are contacted with the top ends of the inner walls of the clamping shells;
the during operation, when the surface of card shell received the impact, there is relative impact force card shell's surface and the inside circuit board of card shell, the elasticity plastic net will arch the pressure that the part received this moment to both sides dispersion, thereby slow down the impact to inside, electronic components normal operating on the protection circuit board, simultaneously because the top of elasticity plastic net contacts with the top of card shell inner wall, fixed effect has been played the circuit board to a certain extent, slow down rocking that the circuit board produced when assaulting, guarantee the steady operation of circuit board.
Preferably, the upper surface of the circuit board is bonded with a lithium battery through a hot melt adhesive, the lithium battery is welded with a line on the surface of the circuit board through a lead, the hot melt adhesive is coated at the welding position of the lead and the circuit board, an elastic rope is fixedly connected to the surface of the elastic plastic net, and the elastic rope is positioned above the lead and in a crossed state;
when the lithium battery clamp is in work, under the influence of soldering tin, the welding position of the lead and the circuit board is in a hard state, and meanwhile, when the clamp shell receives impact, the lead can shake to a certain degree, so that the welding position of the lead and the circuit board is bent, and further, the welding position is broken due to metal fatigue, and the power supply of the lithium battery is influenced; coating hot melt adhesive on the welding position to wrap the hard part, so that the influence of impact on the wire is reduced, and the operation of the circuit board is ensured; the pressing of the elastic rope on the lead further slows down the shaking amplitude of the lead and the influence of the lead on a circuit.
Preferably, the surfaces of the upper shell and the lower shell are both coated with TPU materials;
when the clamp shell is in work, the TPU material has the excellent characteristics of high tension, high tensile force, wear resistance, toughness and aging resistance, the impact resistance of the clamp shell is improved by coating the TPU material, and the possibility of scratches on the surface of the clamp shell caused by impact is reduced.
The invention has the following beneficial effects:
1. according to the UWB small-sized positioning card, when the extrusion cavity in the rubber sheet is buckled, the extrusion cavity expands towards the side wall in the card shell to extrude the circuit board, so that the circuit board is more fixed in the card shell, the circuit board cannot shake violently when the card shell is impacted, the damage of the impact on electronic components on the circuit board is relieved, and the normal work of the positioning card is ensured; when the positioning card drops carelessly, the fixed block extrudes the elastic cavity under the influence of the impact force of the fixed block, the buffer plate is driven by the elastic telescopic rod to move towards the direction of the card shell under the influence of the extrusion force of the fixed block, and the elastic telescopic rod is reset under the influence of the spring when the impact force disappears, so that the damage of the impact force to four corners of the positioning card is reduced, and the operation of electronic components in the positioning card is ensured;
2. according to the UWB small-sized positioning card, when the UWB small-sized positioning card is impacted, the upper shell is affected by impact force to drive the connector to be separated from the fixing hole of the lower shell, and when the UWB small-sized positioning card is separated, the large end part of the connector cannot be separated due to the influence of the blocking piece, so that the connector and the blocking piece are relatively extruded when the shell is impacted, the impact force of the ground on the shell is reduced, the upper shell and the lower shell are not easy to separate, and electronic components in the card shell are not damaged;
3. according to the UWB small-sized positioning card, when the surface of the card shell receives impact, the surface of the card shell applies pressure to the inside of the card shell, and at the moment, the elastic plastic net disperses the pressure applied to the arched part to two sides, so that the impact on the inside is relieved, the normal operation of electronic components on a circuit board is protected, meanwhile, the top of the elastic plastic net is in contact with the top end of the inner wall of the card shell, the circuit board is fixed to a certain extent, the shaking generated by the circuit board during impact is relieved, and the stable operation of the circuit board is ensured.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a main body view of the upper housing;
FIG. 3 is a main body view of the lower housing;
FIG. 4 is a vertical cross-sectional view of the present invention;
fig. 5 is a vertical sectional view of the circuit board.
In the figure: 1. clamping a shell; 11. an upper housing; 12. a lower housing; 2. a circuit board; 21. an elastic plastic net; 22. an elastic cord; 3. a fixed block; 31. an elastic cavity; 32. an elastic telescopic rod; 33. a spring; 34. a buffer plate; 4. a stepped groove; 5. a rubber sheet; 51. an extrusion chamber; 6. a convex strip; 61. a buffer chamber; 7. a connector; 71. a fixing hole; 72. a blocking sheet; 73. a metal rod.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, the UWB small locator card of the present invention includes a card housing 1 and a circuit board 2, wherein the card housing 1 includes an upper housing 11 and a lower housing 12, four corners of the upper housing 11 and the lower housing 12 are both fixedly connected with a fixing block 3, the fixing block 3 is fixedly mounted on the card housing 1 through an adhesive, an elastic cavity 31 is formed inside the fixing block 3, four corners of the upper housing 11 and the lower housing 12 are both fixedly connected with an elastic telescopic rod 32, the elastic telescopic rod 32 is located inside the elastic cavity 31, a spring 33 is sleeved outside the elastic telescopic rod 32, one end of the spring 33 far away from the elastic cavity 31 is fixedly connected with the card housing 1, one end of the elastic telescopic rod 32 far away from the card housing 1 is fixedly connected with a buffer plate 34, one end of the spring 33 far away from the card housing 1 is fixedly connected with the buffer plate 34, and the outer side of the buffer plate 34 is attached to the inner wall of the elastic cavity 31, the interior of going up casing 11 and lower casing 12 has all been seted up the ladder groove 4, and goes up casing 11 and lower casing 12 combination back ladder groove 4 formation holding tank, circuit board 2 fixed connection is inside the holding tank, it has the sheet rubber 5 all to adhere on the relative side of casing 11 and lower casing 12 to go up, when going up casing 11 and lower casing 12 combination formation card shell 1, the sheet rubber 5 on going up casing 11 and lower casing 12 contacts each other and extrudes, the inside of sheet rubber 5 has seted up extrusion chamber 51, the extrusion chamber 51 is close to the inside lateral wall thickness of card shell 1 and is less than the extrusion chamber 51 and keeps away from the inside lateral wall thickness of card shell 1, the inner wall fixed connection of card shell 1 has sand grip 6, cushion chamber 61 has been seted up to the inside of sand grip 6, sand grip 6 is soft rubber material;
when the positioning card works, when the upper shell 11 and the lower shell 12 are buckled, the space of the extrusion cavity 51 is reduced and the internal pressure is increased when the extrusion cavity 51 in the rubber sheet 5 is buckled, so that the rubber sheet 5 expands towards the side wall in the card shell 1 to extrude the circuit board 2 in the card shell 1, and the circuit board 2 is more fixed in the card shell 1, so that the circuit board 2 cannot shake violently when the card shell 1 is impacted, the damage of the impact on electronic components on the circuit board 2 is reduced, and the normal work of the positioning card is ensured; when the positioning card drops carelessly, the four corners of the positioning card are in contact with the ground, the fixed block 3 applies extrusion force to the direction of the corner of the card shell 1 in contact with the ground under the influence of the impact force to extrude the elastic cavity 31, the buffer plate 34 is driven by the extrusion force of the fixed block 3 to move the elastic telescopic rod 32 to the direction of the card shell 1, when the impact force disappears, the elastic telescopic rod 32 is reset under the influence of the spring 33, the damage of the impact force to the four corners of the positioning card is reduced, and the operation of electronic components in the positioning card is ensured; when the four sides of the card shell 1 are impacted, the convex strips 6 on the inner wall of the card shell 1 are used for buffering, so that the damage of impact force to the circuit board 2 is reduced, and the normal operation of the circuit board 2 is protected.
As an embodiment of the present invention, the four corners and the middle positions of the four sides of the side surface of the lower housing 12, which are faced by the upper housing 11, are both fixedly connected with connectors 7, the four corners and the middle positions of the four sides, which are faced by the lower housing 12, of the side surface of the upper housing 11 are provided with fixing holes 71 which are in one-to-one correspondence with the connectors 7, the depth of each fixing hole 71 is smaller than the thickness of the lower housing 12, the rubber sheet 5 is provided with through holes which are in one-to-one correspondence with the fixing holes 71, the inner wall of each fixing hole 71 is fixedly connected with a blocking sheet 72, one end of each blocking sheet 72, which is far away from the inner wall of each fixing hole 71, is obliquely directed to the bottom of each fixing hole 71, and each blocking sheet 72 is made of an elastic plastic material;
when the card shell 1 is impacted, the buckling position between the upper shell 11 and the lower shell 12 is affected by the impact force generated by falling when the card shell 1 is impacted, so that the upper shell 11 is separated from the lower shell 12; when the card shell is impacted, the upper shell 11 is affected by impact force to drive the connector 7 to be separated from the fixing hole 71 of the lower shell 12, and when the connector 7 is separated, the large head part of the connector 7 cannot be separated due to the influence of the baffle piece 72, so that the connector 7 and the baffle piece 72 generate relative extrusion when the shell is impacted, the impact force of the ground on the shell is relieved, the upper shell 11 and the lower shell 12 are not easy to separate, and the electronic components in the card shell 1 are not damaged; in long-term use, the sticky rubber sheet 5 on the upper shell 11 and the lower shell 12 is easy to lose stickiness, so that the card shell 1 is easy to deflect when being collided, and at the moment, because the connecting head 7 is tightly combined with the fixing hole 71, the possibility of deflection of the rubber sheet 5 is reduced, and the circuit board 2 is ensured to be fixed.
As an embodiment of the present invention, a metal rod 73 is embedded in the connecting head 7, the metal rod 73 is T-shaped, and a transverse portion of the metal rod 73 is located in a side wall of the upper housing 11;
the during operation, because connector 7 is plastic goods, the fracture appears easily when card shell 1 receives the impact, after connector 7 fracture, can lead to between casing 11 and the lower casing 12 not hard up, lead to even between casing 11 and the lower casing 12 direct separation, finally influence the combination compactness between the card shell 1, greatly reduced card shell 1's impact resistance, connecting portion embedding metal pole 73 at connector 7 and last casing 11, when receiving the impact, because metal pole 73's influence makes the joint strength between connector 7 and the last casing 11 improve, thereby reduce connector 7 cracked possibility, guarantee card shell 1's compactness.
As an embodiment of the present invention, the upper surface and the lower surface of the circuit board 2 are both fixedly connected with an elastic plastic net 21, the elastic plastic net 21 is overall arched, the middle part of the elastic plastic net 21 does not contact with the electrical components on the circuit board 2, and the top of the arched part on the elastic plastic net 21 contacts with the top end of the inner wall of the card housing 1;
the during operation, when the impact is received on the surface of card shell 1, there is relative impact force on the surface of card shell 1 and the circuit board 2 of card shell 1 inside, the pressure that this moment elasticity plastic net 21 will arch the part and receive disperses to both sides, thereby slow down the impact to inside, electronic components normal operating on the protection circuit board 2, simultaneously because the top of elasticity plastic net 21 contacts with the top of card shell 1 inner wall, fixed effect has been played circuit board 2 to a certain extent, slow down rocking that circuit board 2 produced when assaulting, guarantee circuit board 2's steady operation.
As an embodiment of the present invention, a lithium battery is bonded on the upper surface of the circuit board 2 through a hot melt adhesive, the lithium battery is welded with a line on the surface of the circuit board 2 through a wire, the hot melt adhesive is coated on the welding position of the wire and the circuit board 2, an elastic rope 22 is fixedly connected to the surface of the elastic plastic net 21, and the elastic rope 22 is positioned above the wire and in a crossed state;
when the lithium battery clamp is in work, under the influence of soldering tin, the welding position of the lead and the circuit board 2 is in a hard state, and meanwhile, when the clamp shell 1 is impacted, the lead can shake to a certain degree, so that the welding position of the lead and the circuit board 2 is bent, and further, the welding position is broken due to metal fatigue, and the power supply of the lithium battery is influenced; coating hot melt adhesive on the welding position to wrap the hard part, so that the influence of impact on the lead is reduced, and the operation of the circuit board 2 is ensured; the pressing of the elastic rope on the lead further slows down the shaking amplitude of the lead and the influence of the lead on a circuit.
As an embodiment of the present invention, the surfaces of the upper shell 11 and the lower shell 12 are both coated with TPU material;
when the card shell is in work, the TPU material has the excellent characteristics of high tension, high tensile force, wear resistance, toughness and aging resistance, the impact resistance of the card shell 1 is improved by coating the TPU material, and the possibility of scratches on the surface of the card shell 1 caused by impact is reduced.
The specific implementation mode is as follows:
when the upper shell 11 and the lower shell 12 are buckled, when the extrusion cavity 51 in the rubber sheet 5 is buckled, the space of the extrusion cavity 51 is reduced, and the internal pressure is increased, so that the rubber sheet 5 expands towards the side wall in the clamping shell 1 to extrude the circuit board 2 in the clamping shell 1, and the circuit board 2 is more fixed in the clamping shell 1; when the positioning card drops carelessly, four corners of the positioning card are contacted with the ground, the fixed block 3 applies extrusion force to the direction of the contact angle of the clamping shell 1 and the ground under the influence of the impact force to extrude the elastic cavity 31, the buffer plate 34 is driven by the extrusion force of the fixed block 3 to move towards the clamping shell 1, and the elastic telescopic rod 32 is reset under the influence of the spring 33 when the impact force disappears;
when the card shell 1 is impacted, because the upper shell 11 and the lower shell 12 are in a buckling state, the buckling position between the upper shell 11 and the lower shell 12 is influenced by the impact force generated by falling when the card shell is impacted, so that the upper shell 11 is separated from the lower shell 12; when the shell is impacted, the upper shell 11 is affected by the impact force to drive the connector 7 to be separated from the fixing hole 71 of the lower shell 12, and when the connector 7 is separated, the large head part of the connector 7 cannot be separated due to the influence of the blocking piece 72, so that the connector 7 and the blocking piece 72 are relatively extruded when the shell is impacted, and the impact force of the ground on the shell is reduced;
when the surface of the card shell 1 receives impact, the surface of the card shell 1 and the circuit board 2 in the card shell 1 have relative impact force, and at the moment, the elastic plastic net 21 disperses the pressure applied to the arched part to two sides, thereby slowing down the impact to the inside.
In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered limiting on the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a small-size locator card of UWB, includes card shell (1), circuit board (2), its characterized in that: the clamping shell (1) comprises an upper shell (11) and a lower shell (12), wherein fixed blocks (3) are fixedly connected to four corners of the upper shell (11) and the lower shell (12), the fixed blocks (3) are fixedly mounted on the clamping shell (1) through adhesives, elastic cavities (31) are formed in the fixed blocks (3), elastic telescopic rods (32) are fixedly connected to four corners of the upper shell (11) and the lower shell (12), the elastic telescopic rods (32) are located in the elastic cavities (31), springs (33) are sleeved outside the elastic telescopic rods (32), one ends, far away from the elastic cavities (31), of the springs (33) are fixedly connected with the clamping shell (1), one ends, far away from the clamping shell (1), of the elastic telescopic rods (32) are fixedly connected with buffer plates (34), the springs (33) are far away from the clamping shell (1) and are fixedly connected with the buffer plates (34), the outside of buffer board (34) is laminated with the inner wall in elasticity chamber (31) mutually, go up casing (11) and the inside of casing (12) down and all seted up ladder groove (4), and go up casing (11) and casing (12) down and combine back ladder groove (4) to form the holding tank, circuit board (2) fixed connection is inside the holding tank, it has rubber piece (5) all to adhere on the side relative with casing (12) down to go up casing (11), when going up casing (11) and casing (12) combination formation card shell (1) down, go up rubber piece (5) mutual contact and extrusion on casing (11) and casing (12) down, extrusion chamber (51) have been seted up to the inside of rubber piece (5), extrusion chamber (51) are close to the inside lateral wall thickness of card shell (1) and are less than extrusion chamber (51) and keep away from the inside lateral wall thickness of card shell (1), the inner wall fixedly connected with sand grip (6) of card shell (1), a buffer cavity (61) is formed in the raised line (6), and the raised line (6) is made of soft rubber;
go up the equal fixedly connected with connector (7) of four corners department and the intermediate position of four sides on the side of casing (12) down of casing (11) orientation, casing (12) are down towards the four corners department of the side of last casing (11) and the intermediate position of four sides set up fixed orifices (71) with connector (7) one-to-one, the degree of depth of fixed orifices (71) is less than the thickness of casing (12) down, the through-hole has been seted up in sheetrubber (5), and through-hole and fixed orifices (71) one-to-one, the inner wall fixedly connected with of fixed orifices (71) blocks piece (72), block the bottom of the directional fixed orifices (71) of one end slope that fixed orifices (71) inner wall were kept away from to piece (72), block piece (72) and be the elastic plastic material.
2. A UWB mini-locator card as defined in claim 1 wherein: the metal rod (73) is embedded in the connector (7), the metal rod (73) is T-shaped, and the transverse part of the metal rod (73) is positioned in the side wall of the upper shell (11).
3. A UWB mini-locator card as defined in claim 1 wherein: the upper surface and the lower surface of circuit board (2) all fixedly connected with elasticity plastic net (21), elasticity plastic net (21) are whole to be the arch, and the mid portion of elasticity plastic net (21) does not contact the electric elements on circuit board (2), the top of the part of arching contacts with the top of card shell (1) inner wall on elasticity plastic net (21).
4. A UWB mini-locator card as defined in claim 3 wherein: the upper surface of circuit board (2) has the lithium cell through the hot melt adhesive bonding, the lithium cell passes through the wire and the line welding on circuit board (2) surface, the hot melt adhesive has been paintd to the wire and the splice of circuit board (2), the fixed surface of elasticity plastic net (21) is connected with elasticity rope (22), elasticity rope (22) are located the wire top and are the cross state.
5. A UWB mini-locator card as defined in claim 1 wherein: the surfaces of the upper shell (11) and the lower shell (12) are coated with TPU materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110978444.2A CN113613442B (en) | 2021-08-25 | 2021-08-25 | Small UWB positioning card |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110978444.2A CN113613442B (en) | 2021-08-25 | 2021-08-25 | Small UWB positioning card |
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| CN113613442A CN113613442A (en) | 2021-11-05 |
| CN113613442B true CN113613442B (en) | 2022-09-23 |
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| CN202110978444.2A Active CN113613442B (en) | 2021-08-25 | 2021-08-25 | Small UWB positioning card |
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| CN113691951B (en) * | 2021-09-01 | 2024-02-06 | 杭州中芯微电子有限公司 | Indoor positioning navigation auxiliary equipment |
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