Lightweight lithium battery system for a medical vehicle

Abstract

Lightweight lithium battery system for a medical cart, comprehensive: one car (100); a battery box (300) attached to an underside of the carriage (100), wherein the battery box (300) is hollow to form a battery compartment, wherein a temperature sensor is embedded in the battery compartment, wherein the battery box (300) has a positioning hole (301) on a side wall of the battery box (300), and wherein a door plate (310) is attached to an opening of the battery box (300) on a side of the battery box (300); a push mechanism (500) comprising a compression spring (510) and a baffle plate (530), wherein the compression spring (510) has one end attached to the baffle plate (530) and another end attached to an inner wall of the battery box (300), wherein a limiting rod (550) is attached to the baffle plate (530), wherein one end of the limiting rod (550) engages with and is inserted into the positioning hole (301) and has a positioning groove (551), and wherein a limiting plate (330) is slidably connected to the battery box (300), the limiting plate (330) having a lower end that engages in the positioning groove (551); and a release mechanism (700) comprising an electromagnet (710) and a wedge block (730), wherein the wedge block (730) is fixedly connected to an iron block (750), wherein the iron block (750) is arranged directly in front of an iron core of the electromagnet (710), and wherein a slide (770) is attached to an upper end of the boundary plate (330) and is arranged opposite the wedge block (730).

Description

TECHNICAL AREA

[0001] The present utility model relates to the field of lithium battery technologies, in particular to a lightweight lithium battery system for a medical vehicle. STATE OF THE ART

[0002] With the rapid development of biomedical technology and science, portable electronic products for medical monitoring and large-scale medical devices are increasingly being used in everyday life and in clinical medical applications, heralding a paradigm shift in medical treatment. As a result, various batteries for medical devices, portable medical batteries, and specialized lithium batteries for medical devices have entered the market.

[0003] The aforementioned conventional technical solutions have the following shortcomings. Spontaneous combustion of lithium batteries is a frequent occurrence. Following combustion, the device to which the lithium battery is attached is often also destroyed, resulting in losses. Furthermore, because the lithium battery is housed in a protective enclosure, it is difficult to directly control the burning battery, leading to lengthy extinguishing times and requiring significant personnel and material resources. CONTENTS OF THE PRESENT USE SAMPLE

[0004] In view of a problem in the prior art, namely that the self-ignition of a lithium battery is unlikely to be directly controlled because the lithium battery is housed in a protective structure, the present utility model offers the following technical solutions.

[0005] A lightweight lithium battery system for a medical cart comprises a cart, a battery box, a sliding mechanism, and a release mechanism. The battery box is attached to the underside of the cart. The battery box is hollow to form a battery compartment. A temperature sensor is embedded in the battery compartment. The battery box has a positioning hole on one side wall. A door plate is attached to an opening on one side of the battery box. The sliding mechanism comprises a compression spring and an impact plate. The compression spring has one end attached to the impact plate and the other end attached to an inner wall of the battery box. A stop bar is attached to the impact plate. One end of the stop bar engages with and is inserted into the positioning hole and has a positioning groove.A limit plate is slidably connected to the battery box. The limit plate has a lower end that engages in a positioning groove. The release mechanism comprises an electromagnet and a wedge block. The wedge block is rigidly connected to an iron block. The iron block is positioned directly in front of an iron core of the electromagnet. A slider is attached to the upper end of the limit plate and positioned opposite the wedge block.

[0006] The battery box has a charging port on one of its outer surfaces. The battery compartment contains only two electrode docking pin holes. A heat-conducting block is embedded in one side wall of the battery box. This heat-conducting block is attached to a battery on one side and to a heat-dissipating plate on the other. The heat-dissipating plate is equipped with a heat-dissipating fin attached to one of its outer surfaces.

[0007] An alarm is mounted on the vehicle and electrically connected to a control unit. The control unit has a signal receiver port that is electrically connected to a pressure sensor. The pressure sensor is embedded in an inner wall of the battery compartment. Through the interaction of the temperature and pressure sensors, battery swelling or excessive temperature is monitored, and a monitoring signal is transmitted to the control unit. If the information received by the control unit exceeds a predetermined value, the electromagnet is energized by the control unit to attract and engage the iron block, and the alarm is powered by the control unit to trigger an alarm.

[0008] In a preferred embodiment of the above-mentioned technical solution, multiple compression springs are provided; the retaining bar has a chamfer at its end; and the door plate has a lower end that is hinged to the battery box and an upper end that snaps into the battery box. The multiple compression springs are adjusted to provide sufficient pressure to smoothly push a defective lithium battery out of the battery compartment. Furthermore, the option of mounting the door plate on one side of the battery box facilitates manual battery replacement.

[0009] In a preferred embodiment of the above technical solution, the door panel has its lower end articulated to the battery box by a pivot shaft; and a torsion spring surrounds a surface of the pivot shaft, the torsion spring being configured to push the door panel open. By attaching the torsion spring to a pivot point, the door panel can be held in an open position under the pressure of the torsion spring after the door panel has been unlocked, thus facilitating easy access to the battery and preventing an abnormal battery from being obstructed by the door panel when it is pushed out.

[0010] In a preferred embodiment of the above technical solution, the battery box has a first receiving groove formed therein; the electromagnet is fixed in the first receiving groove; and the wedge block is slidably arranged in the first receiving groove. By arranging the wedge block in the first receiving groove formed in the battery box, jamming caused by the engagement of an external structure is avoided, thus ensuring smooth and reliable sliding movement.

[0011] In a preferred embodiment of the above technical solution, the battery box has a second receiving groove; a lever is mounted in the second receiving groove, the lever being attached at one end to a first return spring and having an engagement groove at the other end; and an engagement block is attached to the door plate and engages in the engagement groove. By pressing the end of the lever with the first return spring, the other end of the lever with the engagement groove moves upward, so that the other end of the lever moving upward engages with the engagement block and locks the door plate.

[0012] In a preferred embodiment of the above technical solution, a surface of the door panel has a through-hole; a bolt engages with and is inserted into the through-hole; a surface of the engagement block has a threaded bore; and the bolt engages with and is screwed into the threaded bore at one end. Since the engagement block and the engagement groove cannot be unlocked from the outside once engaged, and the engagement block is secured to the door panel by the bolt, the door panel can be opened by removing the bolt, thus providing conventional access to the battery. Using the screw for connection makes it unlikely that the door panel could be opened under normal circumstances in public places, thereby increasing security.Furthermore, the bolt for the connection does not impair normal operation due to the low replacement and maintenance frequency of the lithium battery.

[0013] In a preferred embodiment of the above technical solution, a central part of the lever is rotatably connected to the battery box via a rotary rod; the engagement groove and the first return spring are each arranged on two sides of the rotary rod; and the first return spring has an upper end that is fixedly connected to a top of the second receiving groove.

[0014] In a preferred embodiment of the above technical solution, the battery box is slidably connected to a pull rod, one end of which is fixed to the wedge block and the other end is attached to a projection; the iron block is attached to a lower face of the pull rod; and the projection is configured to push the lever so that it rotates around the rotary rod. As the lever slides, the projection is driven to slide synchronously. When the projection slides into a position below the first return spring, it pushes the lever to rotate around the rotary rod and compress the first return spring, while the other end of the lever moves downward to allow the engagement block and the engagement groove, which are latching together, to disengage from each other, thereby unlocking the engagement block.

[0015] In a preferred embodiment of the above technical solution, the projection is arranged directly below the engagement block and below the lever; and the engagement groove is formed on an upper surface of the lever.

[0016] In a preferred embodiment of the above technical solution, a second return spring is installed in the first receiving groove, the second return spring being configured to push the iron block back into its original position; and a third return spring is mounted at an upper end of the slide. The second return spring serves to push back the iron block, thereby synchronously retracting the pull rod and the wedge block. In this way, after a release action, all mechanisms in the battery box automatically return to their initial positions, allowing the battery to be reinserted and repeatedly reused.

[0017] The present utility model offers the following advantageous effects.

[0018] 1. The battery box is attached to the base of the cart and houses a lightweight lithium battery. Lithium batteries offer the advantages of small size, light weight, and a long cycle life, perfectly compensating for the disadvantages of conventional lead-acid batteries, namely their heavy weight and short cycle life. Furthermore, it makes the cart more convenient to use. Due to the small size of the lithium battery, it can be mounted between the four wheels on the base of the cart, allowing for efficient use of space without occupying the upper compartment, resulting in a simpler and more aesthetically pleasing appearance.

[0019] 2. By installing the battery box to house the lithium battery for protection, the lithium battery is positioned in the hollow battery compartment. The temperature sensor is built into the battery compartment and configured to monitor temperature changes of the lithium battery in real time. If a temperature exceeds the preset value, the system controls the electromagnet to energize it, thereby attracting and locking the iron block on one side. As the iron block is attracted and locked, the wedge block is simultaneously pushed to slide. When the wedge block slides to engage with the sliding block, the sliding block also slides. Since the sliding block is attached to the top of the boundary plate, the boundary plate is moved upward, disengaging its bottom from the positioning groove, causing the compressed compression spring to slide the impact plate.Sliding the impact plate 530 pushes the lithium battery out of the battery compartment, preventing the cart and any objects on it from catching fire during spontaneous combustion and thus reducing losses. Furthermore, pushing out the lithium battery facilitates firefighting and allows for quick and efficient extinguishing, thereby reducing the consumption of personnel and materials. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 shows a schematic perspective structural view of a lightweight lithium battery system for a medical vehicle according to one embodiment. Fig. Figure 2 shows a schematic perspective structural view of a battery box according to one embodiment. Fig. Figure 3 shows a schematic sectional view of a battery box according to one embodiment. Fig. Figure 4 shows a schematic perspective structural view of a release mechanism according to one embodiment. Fig. Figure 5 shows a schematic perspective structural view of Part A in Fig. 4 according to one embodiment. Fig. Figure 6 shows a schematic perspective structural view of a thrust mechanism according to one embodiment. Fig. Figure 7 shows a schematic perspective structural view in which a boundary plate is connected to a slider according to one embodiment. Fig. Figure 8 shows a schematic perspective structural view of a lever according to one embodiment. Fig. Figure 9 shows a schematic perspective structural view of an engagement block according to one embodiment. Fig. Figure 10 shows a schematic perspective structural view in which a pull rod is connected to a slider according to one embodiment. BRIEF DESCRIPTION OF THE DRAWINGS: 100 cars; 300 battery box; 301 Positioning hole; 303 Heat dissipation fin; 310 Door plate; 311 Intervention block; 313 bolts; 330 Boundary plate; 350 rotary shaft; 351 Torsion spring; 370 levers; 371 first return spring; 373 Intervention groove; 390 pull rod; 391 lead; 500 thrust mechanism; 510 compression spring; 530 Impact plate; 550 Boundary bar; 551 Positioning groove; 700 Trigger mechanism; 710 Electromagnet; 730 wedge block; 750 iron blocks; 751 second return spring; 770 slides; 771 third return spring. DETAILED DESCRIPTION

[0020] In order to illustrate the objectives, technical solutions and advantages of the present utility model more clearly, the technical solutions of the present utility model are described clearly and completely below in combination with exemplary embodiments. Designs

[0021] In Fig. 1 to Fig. 10 comprises a lightweight lithium battery system for a medical cart, a cart 100, a battery box 300, a push mechanism 500 and a release mechanism 700.

[0022] The battery box 300 is attached to the underside of the cart 100. The battery box 300 is hollow to form a battery compartment. A temperature sensor is embedded in the battery compartment. The battery box 300 has a positioning hole 301 on one side wall. A door plate 310 is attached to an opening on one side of the battery box 300.

[0023] The thrust mechanism 500 comprises a compression spring 510 and a baffle plate 530. The compression spring 510 has one end attached to the baffle plate 530 and another end attached to an inner wall of the battery box 300. A limiting rod 550 is attached to the baffle plate 530. One end of the limiting rod 550 engages with and is inserted into the positioning hole 301 and has a positioning groove 551. A limiting plate 330 is slidably connected to the battery box 300. The limiting plate 330 has a lower end that engages in the positioning groove 551.

[0024] The release mechanism 700 comprises an electromagnet 710 and a wedge block 730. The wedge block 730 is rigidly connected to an iron block 750. The iron block 750 is positioned directly in front of an iron core of the electromagnet 710. A slide 770 is attached to the upper end of the limit plate 330 and is positioned opposite the wedge block 730.

[0025] The battery box 300 has a charging opening on one of its outer sides. Only two electrode docking pin holes are provided in the battery compartment. A heat-conducting block is embedded in one side wall of the battery box 300. The heat-conducting block is attached to a battery on one side and to a heat-dissipating plate on the other side. The heat-dissipating plate is provided with a heat-dissipating fin 303, which is attached to an outer surface of the heat-dissipating plate.

[0026] An alarm is attached to carriage 100 and electrically connected to a control unit. The control unit has a signal receiving port that is electrically connected to a pressure sensor. The pressure sensor is embedded in an inner wall of the battery compartment. Through the interaction of the temperature sensor and the pressure sensor, battery swelling or excessive temperature is monitored, and a monitoring signal is transmitted to the control unit. If information received by the control unit exceeds a predetermined value, the electromagnet 710 is energized by the control unit to attract and engage the iron block 750, and the alarm is powered by the control unit to trigger an alarm.

[0027] As a specific embodiment of the present utility model, the following are described in Fig. Two multiple compression springs 510 are provided; the limiting rod 550 has a chamfer at its end; and the door plate 310 has a lower end that is hinged to the battery box 300 and an upper end that snaps into the battery box 300. The multiple compression springs 510 are adjusted to provide sufficient pressure to smoothly push a defective lithium battery out of the battery compartment. Furthermore, the option of mounting the door plate 310 on one side of the battery box 300 facilitates manual battery replacement.

[0028] As a specific embodiment of the present utility model, in Fig. 1 to Fig. 3 The door panel 310 has its lower end hinged to the battery box 300 by a pivot shaft 350; and a torsion spring 351 surrounds a surface of the pivot shaft 350. The torsion spring 351 is configured to push the door panel 310 open. By attaching the torsion spring 351 at a pivot point, the door panel 310 can be held in an open position under the pressure of the torsion spring 351 after the door panel 310 has been unlocked, which facilitates easy access to the battery and prevents an abnormal battery from being obstructed by the door panel 310 when it is pushed out.

[0029] As a specific embodiment of the present utility model, the battery box 300 features in Fig. 3. A first receiving groove is formed therein; the electromagnet 710 is fixed in the first receiving groove; and the wedge block 730 is slidably arranged in the first receiving groove. By arranging the wedge block 730 in the first receiving groove formed in the battery box 300, jamming caused by the engagement of an external structure is avoided, thus ensuring smooth and reliable sliding movement.

[0030] As a specific embodiment of the present utility model, the battery box 300 features in Fig. 8 to Fig. 10 A second receiving groove is formed therein; a lever 370 is mounted in the second receiving groove, the lever 370 being attached at one end to a first return spring 371 and having an engagement groove 373 at the other end; and an engagement block 311 is attached to the door plate 310 and engages in the engagement groove 373. By pressing the end of the lever 370 with the first return spring 371, the other end of the lever 370 with the engagement groove 373 moves upwards, so that the other end of the lever 370, which moves upwards, engages with the engagement block 311 and locks the door plate 310.

[0031] As a specific embodiment of the present utility model, in Fig. 9. A surface of the door plate 310 has a through-hole; a bolt 313 engages with and is inserted into the through-hole; a surface of the engagement block 311 has a threaded bore; and the bolt 313 engages with the threaded bore at one end and is screwed into the threaded bore. Since the engagement block 311 and the engagement groove 373 cannot be unlocked from the outside after engagement, and the engagement block 311 is attached to the door plate 310 by the bolt 313, the door plate 310 can be opened by removing the bolt 313, thus providing conventional access to the battery. Using the bolt 313 for a connection, it is unlikely that the door plate 310 will be opened under normal circumstances in public places, thus increasing the security effect.Furthermore, the bolt 313 for the connection does not impair normal operation due to the low replacement and maintenance frequency of the lithium battery.

[0032] In a specific embodiment of the present utility model, a central part of the lever 370 is rotatably connected to the battery box 300 via a rotary rod; the engagement groove 373 and the first return spring 371 are each arranged on two sides of the rotary rod; and the first return spring 371 has an upper end that is fixedly connected to a top of the second receiving groove.

[0033] A specific embodiment of the present utility model is in Fig. 3, Fig. 4 and Fig.10 The battery box 300 is slidably connected to a drawbar 390, one end of the drawbar 390 being fixedly connected to the wedge block 730 and the other end being attached to a projection 391; the iron block 750 is attached to a lower surface of the drawbar 390; and the projection 391 is configured to push the lever 370 so that it rotates around the pivot rod. When the lever 370 slides, the projection 391 is driven to slide synchronously. When the projection 391 slides into a position below the first return spring 371, the projection 391 pushes the lever 370 to rotate around the rotary rod and compress the first return spring 371, while the other end of the lever 370 moves downwards to allow the engagement block 311 and the engagement groove 373, which are latching together, to separate from each other, thereby unlocking the engagement block 311.

[0034] In a specific embodiment of the present utility model, the projection 391 is arranged directly below the engagement block 311 and below the lever 370; and the engagement groove 373 is formed on an upper surface of the lever 370.

[0035] In a specific embodiment of the present utility model, a second return spring (751) is installed in the first receiving groove, the second return spring (751) being configured to push the iron block (750) back into its original position; and a third return spring (771) is mounted at an upper end of the slide (770). The second return spring (751) serves to push back the iron block (750), thereby synchronously returning the pull rod (390) and the wedge block (730). In this way, after a release action, all mechanisms in the battery box (300) automatically return to their initial position, allowing the battery to be reinserted and repeatedly reused.

[0036] Operating principle: The Battery Box 300 is attached to the base of the Cart 100 and houses a lightweight lithium battery. Lithium batteries offer the advantages of small size, light weight, and a long cycle life, perfectly compensating for the disadvantages of conventional lead-acid batteries, namely their heavy weight and short cycle life. Furthermore, the Cart 100 is more convenient to use. Due to the small size of the lithium battery, it can be mounted between the four wheels on the base of the cart, allowing for efficient use of space without occupying the upper compartment, resulting in a simpler and more aesthetically pleasing appearance. The Battery Box 300 provides protective storage for the lithium battery, which is housed within its hollow compartment.The temperature sensor is installed in the battery compartment and configured to monitor temperature changes in the lithium battery in real time. When a temperature exceeds the preset value, the system controls the electromagnet 710 to energize it, thereby attracting and locking the iron block 750 on one side. As the iron block 750 is attracted and locked, the wedge block 730 is simultaneously pushed to slide. When the wedge block 730 slides to engage with the sliding block 770, the sliding block 770 also slides. Since the sliding block 770 is attached to the upper end of the limit plate 330, the limit plate 330 is moved upward, such that its lower end is disengaged from the positioning groove 551, causing the compressed compression spring 510 to cause the impact plate 530 to slide.Sliding the impact plate 530 pushes the lithium battery out of the battery compartment, preventing the cart 100 and any objects on it from catching fire during spontaneous combustion and thus reducing losses. Furthermore, pushing out the lithium battery facilitates firefighting and enables quick and efficient extinguishing, thereby reducing the consumption of personnel and materials.

[0037] The above embodiments serve only to explain, but not to limit, the technical solutions of the present utility model.

Claims

[1] Lightweight lithium battery system for a medical cart, comprising: one car (100); a battery box (300) attached to an underside of the carriage (100), wherein the battery box (300) is hollow to form a battery compartment, wherein a temperature sensor is embedded in the battery compartment, wherein the battery box (300) has a positioning hole (301) on a side wall of the battery box (300), and wherein a door plate (310) is attached to an opening of the battery box (300) on a side of the battery box (300); a thrust mechanism (500) comprising a compression spring (510) and a baffle plate (530), wherein the compression spring (510) has one end attached to the baffle plate (530) and another end attached to an inner wall of the battery box (300), wherein a limiting rod (550) is attached to the baffle plate (530), wherein one end of the limiting rod (550) engages with and is inserted into the positioning hole (301) and has a positioning groove (551), and wherein a limiting plate (330) is slidably connected to the battery box (300), the limiting plate (330) having a lower end that engages in the positioning groove (551); and a release mechanism (700) comprising an electromagnet (710) and a wedge block (730), wherein the wedge block (730) is fixedly connected to an iron block (750), wherein the iron block (750) is arranged directly in front of an iron core of the electromagnet (710), and wherein a slide (770) is attached to an upper end of the boundary plate (330) and is arranged opposite the wedge block (730). [2] Lightweight lithium battery system for a medical cart according to claim 1, wherein: a large number of compression springs (510) are provided; the limiting rod (550) has a chamfer at the end of the limiting rod (550); and the door panel (310) is hinged at the lower end to the battery box (300) and locks into place at the upper end with the battery box (300). [3] Lightweight lithium battery system for a medical cart according to claim 2, wherein: the lower end of the door panel (310) is connected to the battery box (300) by a pivot shaft (350); and a torsion spring (351) surrounds a surface of the rotary shaft (350), wherein the torsion spring (351) is configured to push the door plate (310) to open. [4] Lightweight lithium battery system for a medical cart according to claim 2, wherein: the battery box (300) has a first receiving groove formed therein; the electromagnet (710) is fixed in the first receiving groove; and the wedge block (730) is arranged to be slidable in the first receiving groove. [5] Lightweight lithium battery system for a medical cart according to claim 2, wherein: the battery box (300) has a second receiving groove; a lever (370) is mounted in the second receiving groove, the lever (370) being attached at one end to a first return spring (371) and having an engagement groove (373) at the other end; and an engagement block (311) is attached to the door plate (310) and engages in the engagement groove (373). [6] Lightweight lithium battery system for a medical cart according to claim 5, wherein: a surface of the door panel (310) has a through hole; a bolt (313) engages with the through hole and is inserted into it; a surface of the engagement block (311) has a threaded bore; and the bolt (313) engages with the threaded hole at one end and is screwed into the threaded hole. [7] Lightweight lithium battery system for a medical cart according to claim 5, wherein: a middle part of the lever (370) is rotatably connected to the battery box (300) via a rotary rod; the engagement groove (373) and the first return spring (371) are each arranged on two sides of the rotary rod; and the first return spring (371) has an upper end that is firmly connected to a top side of the second receiving groove. [8] Lightweight lithium battery system for a medical cart according to claim 7, wherein: the battery box (300) is slidably connected to a pull rod (390), wherein one end of the pull rod (390) is fixedly connected to the wedge block (730), and wherein the other end of the pull rod (390) is attached to a projection (391); the iron block (750) is attached to a lower surface of the drawbar (390); and The projection (391) is configured to push the lever (370) so that it rotates around the rotary rod. [9] Lightweight lithium battery system for a medical cart according to claim 8, wherein: the projection (391) is located directly below the engagement block (311) and below the lever (370); and the engagement groove (373) is formed on an upper surface of the lever (370). [10] Lightweight lithium battery system for a medical cart according to claim 4, wherein: a second return spring (751) is installed in the first receiving groove, the second return spring (751) being configured to push the iron block (750) back into position; and a third return spring (771) is attached to the upper end of the slide (770).

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