A power device convenient for vehicle installation

Abstract

The application provides a power device convenient for vehicle installation, relates to the technical field of vehicle power installation, and comprises a top sleeve fixedly installed in a heat dissipation plate, a self-locking hole is formed in a battery body, a self-locking sleeve is slidably installed in the self-locking hole, a lifting sleeve is threadedly connected to the top sleeve, the self-locking sleeve is slidably connected to the lifting sleeve, a fixing ring is installed in the self-locking hole, and a fixing bolt is threadedly installed in the top sleeve. The power device convenient for vehicle installation solves the key problem in the installation process of a new energy automobile battery through an innovative self-locking mechanism. The traditional battery installation mode needs to rely on external equipment for full-process support until all bolts are fastened, and the operation is complicated and low in efficiency. The self-locking pre-tightening system adopted by the device changes the process flow and realizes a convenient installation mode of "inserting and locking", when the battery body is inserted into the self-locking device on the heat dissipation plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field, more particularly, it relates to a power device convenient for vehicle installation. BACKGROUND

[0002] In the field of contemporary new energy vehicle manufacturing, as the core of vehicle energy, the installation method of power battery pack has a decisive influence on vehicle performance, safety and production efficiency. In the existing technical system, the power battery pack of electric vehicle usually adopts the chassis integrated installation strategy, that is, the large battery module or battery pack is directly fixed in the vehicle chassis structure to form a "sandwich" overall structure. Although this installation method optimizes the distribution of vehicle gravity center and space utilization, it faces significant process challenges in actual production and maintenance. The current mainstream battery fixation technology highly depends on the multi-point bolt connection mechanism, which requires arranging dozens of fastening points around the battery pack and using precise torque parameters for one-by-one fastening. The fundamental defect of this design architecture is that it cannot achieve the pre-tightening state of the battery pack, so the installation process is forced to adopt a step-by-step operation process of "positioning first and then fastening". The installation personnel must align multiple fixing points without pre-tightening force, which not only increases the operation difficulty, but also may cause small deviations or uneven stress distribution between the battery pack and the chassis contact surface.

[0003] This non-pre-tightening installation scheme causes a series of chain-like technical difficulties. The most prominent one is the dependence on external auxiliary equipment during the positioning and fastening of the battery pack. Since the new energy vehicle battery pack usually weighs several hundred kilograms, without a pre-tightening mechanism, the installation process must rely on external support equipment such as special hydraulic lifting platforms, suspension systems or mechanical arms to accurately control the spatial position and attitude of the battery pack until all the bolts are initially connected. This external auxiliary support requirement not only significantly increases the equipment investment and space occupation of the production line, but also causes severe operation limitations during bolt tightening. When the external equipment supports the battery pack, its structure often blocks some of the fastening points, forcing the operator to use an undesirable angle and posture to tighten the bolts in a small space. This not only reduces the fastening quality and consistency, but also significantly prolongs the assembly time. Especially on highly automated modern production lines, this dependence on manual intervention and special equipment becomes a bottleneck factor that restricts the improvement of production capacity and the optimization of cost. In the long run, this technical limitation also has a negative impact on the maintenance friendliness of new energy vehicles. Because the same complex process will also repeat in the after-sales battery replacement or maintenance process, increasing the maintenance cost and time, and possibly having an adverse effect on the maintenance quality. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the problems in the prior art, the power device convenient for vehicle installation is provided to solve the technical problems mentioned in the background art.

[0006] (II) Technical solutions

[0007] To achieve the above object, the application provides the following technical scheme: a power device convenient for vehicle installation, comprising a battery body and a heat sink plate attached to the battery body, a cover plate is sealingly and fixedly installed on the heat sink plate, and the cover plate and the heat sink plate are installed on a chassis; further comprising a self-locking mechanism, the self-locking mechanism comprises a top sleeve fixedly installed in the heat sink plate, a self-locking hole is formed in the battery body, a self-locking sleeve is slidingly installed in the self-locking hole, a lifting sleeve is threadedly connected in the top sleeve, the self-locking sleeve is slidingly connected to the lifting sleeve, a fixing ring is installed in the self-locking hole, a fixing bolt is threadedly installed in the top sleeve, the fixing bolt is attached to the fixing ring, a spring is installed on the self-locking sleeve, the other end of the spring abuts against the top sleeve, an intermediate disc is installed on the spring, and the intermediate disc is slidingly connected to the lifting sleeve; further comprising a heat dissipation mechanism, the heat dissipation mechanism comprises a circulating pipe installed in the heat sink plate.

[0008] Preferably, the self-locking mechanism comprises a plurality of locking grooves formed in the self-locking sleeve, and each locking groove is slidingly connected with a top block.

[0009] Preferably, a pull rope is installed on each top block, a plurality of pull ropes are connected to the intermediate disc, a return spring is sleeved and installed on the pull rope, one end of the return spring abuts against the intermediate disc, and the other end of the return spring abuts against the top block.

[0010] Preferably, the heat dissipation mechanism further comprises a water inlet pipe and a water outlet pipe on the battery body, a heat dissipation hole is arranged in the battery body, the heat dissipation hole is respectively communicated with the water inlet pipe and the water outlet pipe, a top pipe is installed on the heat sink plate, and two ends of the circulating pipe are respectively communicated in two top pipes.

[0011] Preferably, the heat dissipation mechanism further comprises a plurality of one-way pipes, the one-way pipes are fixedly installed in the water inlet pipe, the water outlet pipe and the two top sleeves, and a side hole is formed in the side wall of the one-way pipe.

[0012] Preferably, a one-way groove is formed in the one-way pipe, a one-way disc is attached and installed in the one-way groove, a top rod is installed on the one-way disc, and a hexagonal groove is formed in each top rod.

[0013] Preferably, two symmetrical one-way pipes are provided with two matching grooves respectively, and two rubber rings are installed between the two matching grooves.

[0014] Preferably, a threaded ring is installed in the one-way pipe, a plurality of control grooves are formed in the threaded ring, and a plurality of vertical rods are arranged on the one-way disc and coaxial with the control grooves, and a through groove is formed in each vertical rod.

[0015] Preferably, a follow-up rod is installed on the one-way disc, a follow-up sleeve is installed on the threaded ring, and the follow-up rod is limitingly and slidingly connected in the follow-up sleeve.

[0016] Preferably, a push spring is installed on the follow-up rod, a thrust bearing is installed at the lower end of the push spring, and the thrust bearing abuts against the one-way pipe.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the power device convenient for vehicle installation has the following beneficial effects:

[0019] The power device convenient for vehicle installation solves the key problem in the installation process of new energy automobile batteries through the innovative self-locking mechanism. The traditional battery installation method needs to rely on external equipment for full support until all the bolts are tightened, which is complicated and inefficient. The self-locking pre-tightening system changes this process and realizes the convenient installation mode of "inserting and locking". When the battery body is inserted into the self-locking device on the heat dissipation plate, the top block designed inside will automatically expand outward under the action of gravity and form a friction self-locking with the inner wall of the self-locking hole on the battery body, creating a stable pre-fixing state. This pre-tightening state eliminates the long-term dependence on external supporting equipment in traditional installation, and the operator can calmly perform subsequent bolt connection under the condition that the battery has been reliably fixed, improving the installation efficiency and safety. Another technical innovation of the self-locking system is its reversibility design. Through the coordinated action of the lifting sleeve and the spring, a precise and controllable locking and unlocking mechanism is formed. When the battery needs to be disassembled, the top block can be retracted by adjusting the position of the lifting sleeve through the pull rope system, realizing non-destructive unlocking and avoiding the strong operation and potential damage risk in the traditional disassembly process. This intelligent self-locking pre-tightening technology not only significantly reduces the complexity and time cost of battery installation, but also provides a convenient channel for later maintenance, representing a technical breakthrough in the field of new energy automobile battery installation.

[0020] Another innovation of the power device is the integrated double heat dissipation system, which combines direct heat dissipation and indirect heat dissipation to form a comprehensive heat management solution. First, through the network of cooling holes designed inside the battery body, the cooling liquid can directly enter the core area of the battery, achieving high-efficiency direct heat exchange and rapidly removing the heat generated during the battery's operation. At the same time, the device is designed with a fitted heat dissipation plate structure outside the battery, which contains a circulating pipeline system, forming a second heat dissipation barrier. Through the innovative one-way valve system, the cooling circuit is controlled. The one-way pipe connection mechanism used in the device enables the heat dissipation system to automatically complete the connection during the battery installation process, eliminating the need for additional pipe docking steps and simplifying the installation process. In summary, this easy-to-install power device, through the two core technical innovations of self-locking pre-tightening and double heat dissipation, comprehensively improves the installation convenience, heat dissipation efficiency, and operational stability of the new energy vehicle battery system, providing strong technical support for the industrialization development of new energy vehicles. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic diagram of the power device convenient for vehicle installation in the application;

[0022] Figure 2 It is the exploded section view structure schematic diagram of the heat dissipation plate and the battery body in the application;

[0023] Figure 3 It is the structure schematic diagram of two one-way pipes in the application;

[0024] Figure 4 It is the section view structure schematic diagram of the one-way pipe in the application;

[0025] Figure 5 It is the section view structure schematic diagram of the thread ring in the application;

[0026] Figure 6 It is the structure schematic diagram of the thread ring in the application;

[0027] Figure 7 It is the section view structure schematic diagram of the battery body in the application;

[0028] Figure 8 It is the section view structure schematic diagram of the top sleeve and the self-locking sleeve in the application;

[0029] Figure 9 It is the structure schematic diagram of the self-locking sleeve in the application;

[0030] Figure 10 It is the structure schematic diagram of the lifting sleeve in the application.

[0031] In the figure: 11, battery body; 12, heat dissipation plate; 13, cover plate; 21, top sleeve; 22, self-locking hole; 23, self-locking sleeve; 24, lifting sleeve; 25, fixing ring; 26, fixing bolt; 27, spring; 28, intermediate disc; 29, locking groove; 31, circulating pipe; 32, water inlet pipe; 33, water outlet pipe; 34, heat dissipation hole; 35, top pipe; 36, one-way pipe; 37, side hole; 38, one-way groove; 39, one-way disc; 210, top block; 211, pull rope; 212, return spring; 310, top rod; 311, hexagonal groove; 312, fitting groove; 313, rubber ring; 314, threaded ring; 315, control groove; 316, vertical rod; 317, through groove; 318, follower rod; 319, follower sleeve; 320, push spring; 321, thrust bearing. DETAILED DESCRIPTION

[0032] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as that generally understood by those skilled in the art to which the present application belongs.

[0034] In the present application, unless otherwise specified, the orientation such as "up, down" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0035] Please refer to Figures 1 to 10The utility model provides a power device convenient for vehicle installation, including battery body 11 and the heat dissipation plate 12 that sticks on battery body 11, the cover plate 13 is sealed and fixedly installed on the heat dissipation plate 12, and the cover plate 13 and the heat dissipation plate 12 are installed on the chassis, further including self -locking mechanism, the top sleeve 21 of self -locking mechanism is fixedly installed in the heat dissipation plate 12, and the self -locking hole 22 is seted up on battery body 11, the self -locking sleeve 23 is slidably installed in the self -locking hole 22, the lifting sleeve 24 is threadedly connected in the top sleeve 21, the self -locking sleeve 23 is slidably connected on the lifting sleeve 24, the fixed ring 25 is installed in the self -locking hole 22, the fixed bolt 26 is threadedly installed in the top sleeve 21, the fixed bolt 26 sticks on the fixed ring 25, the spring 27 is installed on the self -locking sleeve 23, the other end of spring 27 is abutted on the top sleeve 21, the intermediate disc 28 is installed on the spring 27, the intermediate disc 28 is slidably connected on the lifting sleeve 24, and the self -locking mechanism includes a plurality of locking grooves 29 seted up on the self -locking sleeve 23, each locking groove 29 is slidably connected with the top block 210 respectively, a plurality of top blocks 210 are abutted on the self -locking hole 22 respectively, each top block 210 is respectively provided with a pull rope 211, a plurality of pull ropes 211 are connected on the intermediate disc 28 respectively, the return spring 212 is sleeved and installed on the pull rope 211, one end of return spring 212 is abutted on the intermediate disc 28, and the other end of return spring 212 is abutted on the top block 210.

[0036] When the battery body 11 needs to be fixed, first, the self -locking hole 22 on the battery body 11 is inserted into the self -locking sleeve 23, at this time, a plurality of top blocks 210 are abutted on the inner wall of the self -locking hole 22, and under the action of the return spring 212, the top block 210 is abutted on the inner wall of the self -locking hole 22, so that the top block 210 slides downward along with the gravity of the battery body 11, and then the top block 210 expands outward along the locking groove 29, at this time, the top block 210 is abutted on the inner wall of the self -locking hole 22 due to the outward expansion, so that the self -locking occurs, so that the self -locking state can be generated before a plurality of fixed bolts 26 are fixed, the pre -fixing before fixing is ensured, and the convenience of fixing is ensured, when the pre -fixing is completed, the fixed bolt 26 is threadedly connected on the top sleeve 21 through the lifting sleeve 24, and the fixed bolt 26 is abutted on the fixed ring 25, so that the battery body 11 and the heat dissipation plate 12 are fixed, since the heat dissipation plate 12 is installed on the chassis, so that the fixing of the battery body 11 is ensured.

[0037] When it is needed to be disengaged, first of all, the external lifting equipment is abutted on the battery body 11, and then the plurality of fixing bolts 26 are taken off, at this time, in the self-locking state, therefore, the connection is not disengaged, since the lifting sleeve 24 and the top sleeve 21 are in threaded connection, the distance between the lifting sleeve 24 and the top sleeve 21 is increased after the connection between the two is disengaged, since the spring 27 is in the compressed state before, when the connection between the lifting sleeve 24 and the top sleeve 21 is disengaged, the spring 27 rebounds, and the distance between the intermediate disc 28 and the self-locking sleeve 23 is increased, when the distance is equal to the length of the pull rope 211, the top block 210 will be contracted inward along the locking groove 29 under the action of the pull rope 211, therefore, the self-locking state is disengaged, thereby the disengagement process is completed, when it is needed to restore the self-locking setting, it is only needed to tighten the lifting sleeve 24 and the top sleeve 21 again, at this time, the spring 27 is compressed, and the pull rope 211 is in the relaxed state, under the action of the return spring 212, the top block 210 is pushed to expand outward along the locking groove 29, so that the self-locking can be performed, thereby the self-locking state is ensured.

[0038] The heat dissipation mechanism comprises a circulating pipe 31 installed in the heat dissipation plate 12, and the heat dissipation mechanism further comprises a water inlet pipe 32 and a water outlet pipe 33 on the battery body 11, the battery body 11 is provided with heat dissipation holes 34, the heat dissipation holes 34 are respectively communicated with the water inlet pipe 32 and the water outlet pipe 33, the heat dissipation plate 12 is provided with top pipes 35, the two ends of the circulating pipe 31 are respectively communicated in the two top pipes 35, the heat dissipation mechanism further comprises one-way pipes 36, the one-way pipes 36 are provided in plurality, and the plurality of one-way pipes 36 are respectively fixedly installed in the water inlet pipe 32, the water outlet pipe 33 and the two top sleeves 21, the side wall of the one-way pipe 36 is provided with a side hole 37, the one-way pipe 36 is provided with a one-way groove 38, a one-way disc 39 is attached and installed in the one-way groove 38, a top rod 310 is installed on the one-way disc 39, a hexagonal groove 311 is respectively formed on each top rod 310, two symmetrical one-way pipes 36 are respectively provided with two abutting grooves 312, a rubber ring 313 is respectively installed between the two abutting grooves 312, a threaded ring 314 is threadedly installed in the one-way pipe 36, a plurality of control grooves 315 are formed in the threaded ring 314, a plurality of vertical rods 316 are provided on the one-way disc 39 and coaxially arranged with the control grooves 315, a through groove 317 is respectively formed on each vertical rod 316, a follow-up rod 318 is installed on the one-way disc 39, a follow-up sleeve 319 is installed on the threaded ring 314, the follow-up rod 318 is limitingly and slidingly connected in the follow-up sleeve 319, a push spring 320 is installed on the follow-up rod 318, a thrust bearing 321 is installed at the lower end of the push spring 320, and the thrust bearing 321 abuts against the one-way pipe 36.

[0039] When the connection between the battery body 11 and the heat sink 12 is completed, the two one-way pipes 36 are also attached to each other, and the two top rods 310 have been in contact again. As the continued approach, the push spring 320 is compressed and the one-way disc 39 is disengaged from the connection with the one-way groove 38, thus making the two one-way pipes 36 communicate, and the two attached grooves 312 are sealed by the rubber ring 313. When the connection between the battery body 11 and the heat sink 12 is completed, the two one-way pipes 36 are also connected, and then water is circulated through the water inlet pipe 32 for heat dissipation. First, the cooling water enters the battery body 11 through the heat dissipation hole 34 for heat dissipation, and the battery body 11 is well insulated to ensure the safety of water cooling. After one cycle of heat dissipation, the cooling water is discharged through the water outlet pipe 33. While the cooling water enters the heat dissipation hole 34, it also flows through the side hole 37 into the circulating pipe 31. The cooling water between the heat sink 12 and the cover plate 13 is full, and the cooling water is cooled by the circulating pipe 31. Since the heat sink 12 is attached to the battery body 11, the cooling water can absorb the heat at the attachment position of the battery body 11, and then exchange the heat to the cooling water in the circulating pipe 31. Therefore, the battery body 11 can be cooled twice, thereby improving the heat dissipation effect.

[0040] When the two top rods 310 are in contact with each other, they will push the two vertical rods 316 to move in opposite directions. When the control groove 315 is moved to the position of the through groove 317, the two one-way pipes 36 are connected. When the two one-way pipes 36 are not needed to be connected, since the threaded ring 314 is threadedly connected to the one-way pipe 36, the top rod 310 can drive the follower rod 318 to rotate, and the follower sleeve 319 rotates with the follower rod 318, then drives the threaded ring 314 to rotate. At this time, the position of the through groove 317 relative to the control groove 315 can be adjusted. As long as the vertical rod 316 is adjusted to slide in the through groove 317 throughout the process, the two one-way pipes 36 will not be connected. Therefore, the connection and closing of the two can be controlled, so that they can be adjusted according to the situation to ensure the convenience of use.

[0041] In all the schemes mentioned above, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection methods, which will not be described one by one. In the above, whenever it is mentioned that it is fixedly connected, it is preferred to be welded. Although embodiments of the application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A power unit that is easy to install in a vehicle, comprising a battery body (11) and a heat sink (12) attached to the battery body (11), wherein a cover plate (13) is sealed and fixedly installed on the heat sink (12), and the cover plate (13) and the heat sink (12) are mounted on a chassis; characterized in that: It also includes a self-locking mechanism, which includes a top sleeve (21) fixedly installed inside the heat sink (12), a self-locking hole (22) opened on the battery body (11), a self-locking sleeve (23) slidably installed in the self-locking hole (22), a lifting sleeve (24) threadedly connected to the top sleeve (21), the self-locking sleeve (23) slidably connected to the lifting sleeve (24), a fixing ring (25) installed in the self-locking hole (22), and a fixing bolt (26) threadedly installed in the top sleeve (21). A spring (27) is installed on the self-locking sleeve (23) and attached to the fixing ring (25). The other end of the spring (27) abuts against the top sleeve (21). An intermediate plate (28) is installed on the spring (27) and slidably connected to the lifting sleeve (24). The self-locking mechanism includes multiple locking grooves (29) formed on the self-locking sleeve (23). A top block (210) is slidably connected in each locking groove (29), and the multiple top blocks (210) abut against the self-locking hole (22). It also includes a heat dissipation mechanism, which includes a circulation pipe (31) installed in the heat dissipation plate (12), and a water inlet pipe (32) and a water outlet pipe (33) on the battery body (11). The battery body (11) is provided with heat dissipation holes (34), which are respectively connected to the water inlet pipe (32) and the water outlet pipe (33). A top pipe (35) is installed on the heat dissipation plate (12), and the two ends of the circulation pipe (31) are respectively connected to the two top pipes (35). The heat dissipation mechanism also includes One-way pipe (36), multiple one-way pipes (36) are provided, and multiple one-way pipes (36) are respectively fixedly installed in the water inlet pipe (32), the water outlet pipe (33) and the two top sleeves (21). A side hole (37) is opened on the side wall of the one-way pipe (36), and a one-way groove (38) is opened on the one-way pipe (36). A one-way disc (39) is fitted in the one-way groove (38), and a top rod (310) is installed on the one-way disc (39). A hexagonal groove (311) is opened on each top rod (310).

2. The power unit for easy vehicle installation according to claim 1, characterized in that: Each of the top blocks (210) is equipped with a pull rope (211), and multiple pull ropes (211) are connected to the intermediate disk (28). A return spring (212) is sleeved on each pull rope (211), with one end of the return spring (212) abutting against the intermediate disk (28) and the other end of the return spring (212) abutting against the top block (210).

3. The power unit for easy vehicle installation according to claim 1, characterized in that: Two fitting grooves (312) are respectively opened on the two symmetrically arranged unidirectional tubes (36), and rubber rings (313) are respectively installed between the two fitting grooves (312).

4. A power unit that is easy to install in a vehicle according to claim 3, characterized in that: The one-way tube (36) is threaded with a threaded ring (314), and the threaded ring (314) has multiple control grooves (315). The one-way disc (39) is provided with multiple vertical rods (316) that are coaxially arranged with the control grooves (315), and each vertical rod (316) has a through groove (317).

5. A power unit that is easy to install in a vehicle according to claim 4, characterized in that: A follower rod (318) is installed on the one-way disc (39), and a follower sleeve (319) is installed on the threaded ring (314). The follower rod (318) is slidably connected to the follower sleeve (319).

6. A power unit that is easy to install in a vehicle according to claim 5, characterized in that: A push spring (320) is installed on the follower rod (318), and a thrust bearing (321) is installed at the lower end of the push spring (320). The thrust bearing (321) abuts against the one-way tube (36).

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