CN114024394A - Power device of low heat improvement of new energy automobile - Google Patents
Power device of low heat improvement of new energy automobile Download PDFInfo
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- CN114024394A CN114024394A CN202111355456.6A CN202111355456A CN114024394A CN 114024394 A CN114024394 A CN 114024394A CN 202111355456 A CN202111355456 A CN 202111355456A CN 114024394 A CN114024394 A CN 114024394A
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- motor
- heat dissipation
- shell
- heat
- new energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
Abstract
The invention discloses a power device for low-heat improvement of a new energy automobile, belonging to the field of new energy automobiles, and the device comprises: the heat dissipation device comprises a first shell, a second shell and a heat dissipation device, wherein two ends of the first shell are arranged in a through mode, the middle of the first shell is provided with a first support plate body coaxial with the first support plate body, the inner space of the first support plate body is divided into a first heat dissipation chamber and a second heat dissipation chamber, and a first motor is arranged in the first heat dissipation chamber; the second shell is connected with one end of the first shell, which is provided with a second heat dissipation cavity, through a flange, and a heat dissipation assembly is arranged in the second shell; the third shell is provided with one end connected with the first heat dissipation cavity through a flange, and the upper end and the lower end of the third shell are respectively provided with a pump body and a water tank; this device has realized effectively dispelling the heat to driving motor in the new energy automobile use to reduce outside transmission noise of motor work and vibrations, guarantee motor steady operation and vehicle and use and experience the promotion.
Description
Technical Field
The invention belongs to the field of new energy automobiles, and particularly relates to a low-heat improved power device of a new energy automobile.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
At present, a driving motor of a new energy automobile mainly adopts a direct driving type as a main part, and a wheel-side motor and a wheel-hub motor have more technical problems and are rarely produced in quantity. The direct drive motor mainly comprises a direct current motor, a permanent magnet synchronous motor, an alternating current asynchronous motor and a reluctance motor, wherein the direct current motor is more applied to early electric vehicles, but the direct current motor is basically eliminated due to more complex mechanical mechanism, poor overload capacity, low rotating speed, high maintenance cost and serious electromagnetic interference; the switched reluctance motor is a novel motor which appears in recent years, has simple structure, high reliability, light weight, low cost, high efficiency and easy maintenance, and is very suitable for a driving motor for vehicles.
The current driving motor mainly takes permanent magnet synchronization and alternating current asynchronization as the main factors, and the permanent magnet synchronous motor becomes the first choice of the driving motor of the new energy automobile because of the characteristics of compact structure, light weight, high power density, high operation efficiency, large output torque in a low-speed area and the like. Meanwhile, the alternating current asynchronous motor is one of the priority choices of a new energy automobile driving system, the rotor of the alternating current asynchronous motor is simple and reliable in structure, low in material and manufacturing cost, large in output torque in a low-speed area, convenient to flux-weakening and wide in constant power operation range. Taking an ac asynchronous motor as an example, the motor structure generally consists of a bearing cover, an end cover, a junction box, a stator, a rotor, a bearing, a cooling system, a sensor and a housing part. However, the motor applied to the new energy automobile needs to ensure the stability of the motor when in use, so that the motor is sealed, the motor is easy to heat after long-time operation, and heat dissipation is inconvenient, so that the power device is unstable, and meanwhile, the power device generates noise when in operation, so that the influence on the surrounding environment is easily caused.
It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.
Disclosure of Invention
The invention aims to provide a low-heat improved power device of a new energy automobile, which can effectively dissipate heat of a driving motor in the use process of the new energy automobile, reduce the outward transmission noise and vibration of the motor during working, ensure the stable operation of the motor and improve the use experience of the vehicle.
The technical scheme adopted by the invention for realizing the purpose is as follows: a power device for low-heat improvement of a new energy automobile comprises:
a first shell, two ends of the first shell are arranged in a run-through way, the middle part of the first shell is provided with a first supporting plate body which is coaxial with the first supporting plate body, the inner space of the first supporting plate body is divided into a first heat dissipation chamber and a second heat dissipation chamber,
a first motor is arranged in the first heat dissipation chamber;
the second shell is connected with one end of the first shell, which is provided with a second heat dissipation cavity, through a flange, and a heat dissipation assembly is arranged in the second shell;
the third shell is provided with one end connected with the first heat dissipation cavity through a flange, and the upper end and the lower end of the third shell are respectively provided with a pump body and a water tank;
wherein the water inlet end of the pump body is connected with the water tank through the conveying pipe body, the conveying pipe body of the water inlet end of the pump body connected with the water tank passes through the first shell and is wound on the first motor,
the water outlet end of the pump body is connected with the water tank through the conveying pipe body, and the conveying pipe body, which is connected with the water tank, of the water outlet end of the pump body penetrates through the second shell and passes through the heat dissipation range of the heat dissipation assembly.
The driving motor of the new energy automobile is fixed through the first shell, the first motor is further effectively fixed through the third shell and the first shell, the first motor is prevented from being installed obliquely, meanwhile, the first shell and the third shell limit the first motor, vibration in the working process of the first motor is effectively prevented or reduced and is transmitted to other parts of a vehicle, particularly a vehicle battery pack part, the first motor in the first shell and a subsequent water-cooling heat dissipation pipe body are dissipated through the first shell and the third shell, the water-cooling heat dissipation scheme can directly contact with the outside of the first motor to take away the outside heat of the first motor, airflow flowing in the inside and outside space ranges of the first shell is promoted, heat exchange and heat dissipation effects are improved, and stable working of the first motor is guaranteed, and the specific working modes are as follows:
the first mode is as follows: water-cooling heat dissipation, through the water in the pump body extraction water tank, the flow of the water of extraction in the conveyer pipe body can carry out heat transfer treatment with winding first motor, take away the normal work of guaranteeing first motor with first motor heat, the water after the pump body will exchange heat simultaneously passes through the conveying pipe body and delivers to the second casing direction, utilize radiator unit to carry out the heat transfer once more, spacing distance has between second casing and the first motor, the heat transfer can not influence the effective heat dissipation of first motor direction, the water temperature after the heat transfer reduces and sends back the water tank so reciprocal.
And a second mode: the pump body stops working, the heat dissipation assembly directly works to drive airflow to flow towards the first motor, and the airflow is used for taking away heat around the first motor;
and a third mode: the combined operation of air-cooled heat dissipation and water-cooled heat dissipation refers to the above-mentioned mode one, two, the difference is, the radiator unit output increase of mode two, improve the air-cooled effect, this scheme can realize the quick heat dissipation of first motor and the quick flow of the air current all around of transfer device simultaneously, avoid the ambient temperature intensification, influence the battery pack security, and under the state of combined operation, realize effectively dispelling the heat to driving motor in the new energy automobile use, avoid the noise and the vibrations transmission that current adoption high-power fan heat dissipation leads to through water-cooled air-cooled combination mode, and the present case design is first, the second, the scheme of third casing can effectively weaken the outside transmission noise of heat dissipation in-process motor work and vibrations, guarantee motor steady operation and vehicle use experience promotion.
According to one embodiment of the invention, a first limiting assembling hole for limiting the assembling of the first motor is formed in the center of the first supporting plate body, a long rectangular guide hole body is formed in the first supporting plate body around the first limiting assembling hole, and a rotatable guide plate is arranged in the guide hole body. After the heat dissipation assembly utilizes the wind flow to realize the heat exchange of the water body in the lateral conveying pipe body, the wind flow for heat exchange can be discharged from the diversion hole body on the side wall of the second heat dissipation cavity, the wind flow entering the first heat dissipation cavity is reduced under the separation effect of the first supporting plate body, meanwhile, the hot gas flow discharged to the outside flows fast, the hot gas flow can be prevented from staying outside for a long time, the cold gas flow can be favorably entered, the ambient temperature is controlled, the air flow in the second heat dissipation cavity can be controlled through the diversion hole body on the first supporting plate body to release partial wind flow, and the partial wind flow enters the first heat dissipation cavity through the first supporting plate body, wherein the flow of the air flow entering the first heat dissipation cavity can be controlled through the guide plate according to the flow velocity of the heat dissipation air flow, the different directions of the air flow entering the first heat dissipation cavity can be effectively realized, the flow in the first heat dissipation cavity can be driven to flow, the air pressure in the first heat dissipation cavity is improved, and the internal air flow is promoted to be discharged outwards so as to solve the heat dissipation of the end winding in the motor and the electricity The stability of the permanent magnet in the machine is reduced to cause the problems of demagnetization and the like, the balance of the water temperature in the pipe body wound on the first motor is facilitated, and the heat dissipation is uniform.
According to an embodiment of the present invention, the wall of the first casing is provided with a rectangular inclined heat dissipating hole, and the first heat dissipating chamber and the second heat dissipating chamber are arranged in opposite directions of inclination. The heat dissipation hole body is arranged to enable air to pass through the heat dissipation hole body to enter and exit the first shell, so that in the heat dissipation process, the air flow can take heat out of the first shell and facilitate cold air flow to enter the first shell, the air flow flowing along the direction of the inner wall of the shell can flow outwards in a mode of arranging the heat dissipation hole body in an inclined mode, therefore, the air flow exchanging heat with water in the first heat dissipation cavity can be discharged quickly, the air flow entering the second heat dissipation cavity through the first support plate body is reduced in flow speed towards the first motor and the direction of the shell wall due to the reduction of the air flow speed of the first support plate body, but the flow speed is higher than that of the air flow near the first motor, the air flow balancing heat dissipation hole body capable of driving the air flow near the first motor can also be beneficial to take dust particles around the motor away and discharge from the direction of the heat dissipation hole body, the arrangement mode of the first heat dissipation cavity and the second heat dissipation cavity with the opposite inclined directions can discharge surrounding air flows in different directions, avoiding the concentrated discharge of the heat exchange air flow.
It should be noted that, the heat dissipation holes corresponding to the positions of the heat dissipation assemblies may be formed in the side wall of the second housing in need, so that the airflow can enter the second housing conveniently, and the airflow flowing speed and the heat exchange efficiency are improved.
According to an embodiment of the present invention, a heat dissipating module includes:
a slide rail fixedly arranged on the inner wall of the second shell relative to the first motor,
a second motor, the output end of the second motor is arranged opposite to the first motor, the bottom of the second motor is connected with the slide rail in a sliding way, the output end of the second motor is connected with a fan blade,
a hydraulic rod fixedly connected with the inner wall of the second shell, the telescopic moving path of the hydraulic rod is arranged in parallel with the slide rail, the telescopic end of the hydraulic rod is connected with the second connecting side wall,
and a power supply assembly connected with the second motor is arranged in the second shell.
The design of the heat dissipation assembly is used for achieving heat dissipation of a water body with heat exchange by utilizing wind flow, the temperature of the water body is reduced, heat is transferred to the air and discharged, meanwhile, the wind flow formed by rotation of the fan blades driven by the second motor can also improve the heat dissipation uniform effect of the balancing device by the flowing speed of air flow inside the device, particularly the flowing effect of the air flow near the first motor, in the working process of the second motor, the hydraulic rod can be controlled to push the sliding of the second motor relative to the sliding rail, the flowing interval range of the air flow driven by the rotation of the fan blades is changed, and the problem that the existing heat dissipation device is difficult to achieve heat dissipation balance without changing the position is solved.
According to one embodiment of the invention, the outer side of the fan blade is connected with a protection ring body, the outer side of the protection ring body is provided with a protection strip with an arc-shaped structure, the mode of arranging the protective ring body outside the fan blades is used for preventing the fan blades from reducing the rotating speed of the fan blades and playing a role in protection due to friction between the fan blades and the inner wall of the second shell in the moving process of the second motor, and under the condition of collision friction, the protection strips at the sides of the protection ring body are firstly contacted to form friction, the mode of the first contact through the designed protection strip is beneficial to reducing the friction loss of the contact between the protection ring body and the inner wall of the second shell, and the frictional contact of protection strip leads to its deformation to be favorable to utilizing this friction collision power to make the protection ring body kick-back, makes the relative position fine setting of second motor, avoids further friction and collision, still through the contact of protection strip with second shells inner wall, protection strip size is less than so comparatively forming the harsh noise with the conch wall area of contact and plays the warning effect easily.
According to an embodiment of the present invention, the first motor is sleeved with a limit support plate, the limit support plate is annular and has a notch, the inner side of the limit support plate is disposed with the first motor, and the outer side of the limit support plate is disposed with the inner wall of the first housing. The design scheme of spacing backup pad is used for realizing the support to first motor, realize the firm assembly of first motor in first casing, fill the space between the first motor through spacing backup pad and realize both vibrations transmission and reduce and also guarantee the rotatory axiality etc. of its pivot in the first motor working process, spacing backup pad adopts interval distribution's mode to be favorable to the atress to distribute evenly, wherein spacing backup pad is preferred to be installed in first motor tip, first motor afterbody forms the assembly with first backup pad, can form effectual spacing fixed to first motor both ends like this, the mode of seting up the breach in spacing backup pad is favorable to spacing backup pad and the outside cover of first motor to be established, and the seting up of breach does benefit to the air current and flows in first motor exterior space within range, realize the heat dissipation equilibrium.
According to one embodiment of the invention, the inner side of the limiting support plate is provided with the limiting convex strips at intervals in a surrounding manner, the conveying pipe body connected with the water tank at the water inlet end of the pump body passes through a space between the limiting support plate and the first motor, and the side edge of the limiting support plate is provided with the semicircular auxiliary through grooves at intervals. The locating matching hole of half expert is seted up to spacing backup pad side, connects through the joint piece between the adjacent spacing backup pad, and the joint piece sets with the locating matching hole.
Spacing sand grip that the interval set up is used for realizing the joint to the conveying body, can realize carrying out effectual joint location to the conveying body of winding at the outside radiating fin periphery of first motor under spacing backup pad configuration effect like this, guarantee the effective laminating improvement radiating effect of the radiating fin of conveying body and first motor like this, and under the condition that the air current passes through spacing backup pad, probably can make the slight vibrations of spacing backup pad production, the contact of conveying body and spacing sand grip is favorable to absorbing the shaking force with shaking force transmission to conveying body on, reduce the not hard up loss of equipment and promote the incrustation scale caking division that the body inner wall probably exists under the condition of conveying the body absorption shaking energy and improve heat transfer effect.
Compared with the prior art, the invention has the beneficial effects that: the driving motor of the new energy automobile is fixed through the first shell, the first motor is effectively fixed through the third shell and the first shell, the first motor is prevented from being installed obliquely, meanwhile, the first shell and the third shell limit the first motor, vibration in the working process of the first motor is effectively prevented or reduced and is transmitted to other parts of a vehicle, particularly a vehicle battery pack part, the first motor in the first shell and a subsequent water-cooling heat dissipation pipe body are dissipated through the first shell and the third shell, the water-cooling heat dissipation scheme can directly contact with the outside of the first motor to take away the outside heat of the first motor, airflow flowing in the inside and outside space ranges of the first shell is promoted, heat exchange and heat dissipation effects are improved, and stable working of the first motor is guaranteed.
Drawings
FIG. 1 is a schematic diagram of a power plant for low-heat improvement of a new energy automobile;
FIG. 2 is a schematic diagram of an internal structure of a low-heat modified power device of a new energy automobile;
FIG. 3 is a schematic view of a first housing structure;
FIG. 4 is a schematic view of the internal structure of the first housing;
FIG. 5 is a schematic view of the assembled state of the limiting support plate and the first motor;
FIG. 6 is a schematic view of a spacing support plate;
FIG. 7 is a schematic view of the connection between the limiting support plates;
fig. 8 is a schematic structural diagram of a heat dissipation assembly.
Reference numerals: 10-a first housing; 11-a first support plate body; 12-a heat dissipation hole body; 13-a first limit assembly hole; 14-a flow guide hole body; 15-a baffle; 20-a second housing; 30-a pump body; 31-conveying pipe body; 32-a first heat dissipation chamber; 33-a second heat dissipation chamber; 40-a third housing; 50-a water tank; 60-a heat dissipation assembly; 61-hydraulic rod; 62-a second motor; 63-fan blades; 64-a guard ring body; 65-a guard bar; 66-a slide rail; 67-power supply components; 70-a first motor; 80-a limiting support plate; 81-limiting convex strips; 82-positioning matching holes; 83-auxiliary through groove; 84-clamping block.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the following detailed description and the accompanying drawings:
example 1:
referring to the attached drawings 1-2 in the specification, the low-heat improved power device of the new energy automobile comprises:
a first shell 10, wherein two ends of the first shell 10 are arranged in a penetrating way, the middle part of the first shell 10 is provided with a first support plate 11 which is coaxial with the first support plate, the inner space of the first support plate 11 is divided into a first heat dissipation chamber 32 and a second heat dissipation chamber 33,
a first motor 70 is arranged in the first heat dissipation chamber 32;
the second shell 20, the second shell 20 is connected with one end of the first shell 10, which is provided with the second heat dissipation chamber 33, through a flange, and a heat dissipation assembly 60 is arranged in the second shell 20;
a third housing 40, wherein the third housing 40 is provided with one end connected with the first heat dissipation chamber 32 through a flange and the first housing 10, and the upper end and the lower end of the third housing 40 are respectively provided with a pump body 30 and a water tank 50;
wherein, the water inlet end of the pump body 30 is connected with the water tank 50 through the conveying pipe body 31, the conveying pipe body 31 of the water inlet end of the pump body 30 connected with the water tank 50 penetrates the first shell 10 and is wound on the first motor 70,
the water outlet end of the pump body 30 is connected to the water tank 50 through the delivery tube 31, and the delivery tube 31 connected to the water tank 50 at the water outlet end of the pump body 30 passes through the second housing 20 and passes through the heat dissipation assembly 60.
The driving motor of the new energy automobile is fixed through the first shell 10, the first motor 70 is further effectively fixed and prevented from being installed obliquely and the like through the cooperation of the third shell 40 and the first shell 10, meanwhile, the limit of the first motor 70 is effectively prevented or reduced through the first shell 10 and the third shell 40, the vibration in the working process of the first motor 70 is effectively prevented or reduced from being transmitted to other parts of the automobile, particularly a battery pack part of the automobile, the first motor 70 and a subsequent water-cooling heat dissipation pipe body in the first shell 10 are subjected to heat dissipation in a mode that the second shell 20 is installed at the other end of the first shell 10, wherein a water-cooling heat dissipation scheme can be directly contacted with the outside of the first motor 70 to take away the outside heat of the first motor 70, the air flow in the internal and external space range of the first shell 10 is promoted, the heat exchange and heat dissipation effects are improved, so as to ensure the stable work of the first motor 70, the specific working modes include the following three types:
the first mode is as follows: water-cooling heat dissipation, the water in the water tank 50 is extracted through the pump body 30, the flow of the water of extraction can carry out heat transfer treatment with winding first motor 70 in carrying the body 31, take away the normal work of guaranteeing first motor 70 with first motor heat, the water after the heat transfer is delivered to the second casing 20 direction through carrying the body to the pump body 30 simultaneously, utilize radiator unit 60 to carry out the heat transfer once more, the spacing distance has between second casing 20 and the first motor 70, the heat transfer can not influence the effective heat dissipation of first motor 70 direction, the water temperature after the heat transfer reduces and sends back water tank 50 and reciprocates so.
And a second mode: the pump body 30 stops working, the heat dissipation assembly 60 directly works to drive air to flow towards the first motor 70, and the air flow is used for taking away heat around the first motor 70;
and a third mode: the combined operation of air-cooled heat dissipation and water-cooled heat dissipation refers to the above-mentioned mode one, two, the difference is, the radiator unit 60 output increase of mode two, improve the air-cooled effect, this scheme can realize the quick heat dissipation of first motor 70 and the quick flow of the air current around the device of transfer simultaneously, avoid ambient temperature intensification, influence battery pack security, and under the state of combined operation, realize effectively dispelling the heat to driving motor in the new energy automobile use, avoid the noise and the vibrations transmission that current adoption high-power fan dispels the heat and lead to through water-cooled air-cooled combination mode, and the present case design is first, the second, the scheme of third casing can effectively weaken the outside transmission noise of heat dissipation in-process motor work and vibrations, guarantee motor steady operation and vehicle use experience promotion.
Referring to the accompanying drawings 3-4 in the specification, a first limiting assembly hole 13 for limiting the assembly of the first motor 70 is formed in the center of the first support plate 11, a rectangular guide hole 14 is formed in the first support plate 11 around the first limiting assembly hole 13, and a guide plate 15 capable of rotating is arranged in the guide hole 14. After the heat dissipation assembly 60 utilizes the wind flow to realize the heat exchange of the water body in the lateral conveying pipe body 31, the wind flow for the heat exchange can be discharged from the diversion hole body 14 on the side wall of the second heat dissipation chamber 33, the wind flow enters the first heat dissipation chamber 32 under the separation effect of the first support plate body 11, meanwhile, the hot gas flow discharged to the outside flows fast to avoid the retention time of the hot gas outside and to be favorable for the entering of the cold gas flow, the ambient temperature is controlled, and the air flow in the second heat dissipation chamber 33 can be controlled to enter the first heat dissipation chamber 32 according to the flow velocity of the heat dissipation air flow and effectively realize the different directions of the air flow entering the first heat dissipation chamber 32 through the diversion hole body 14 on the first support plate body 11, so that the flow of the air flow in the first heat dissipation chamber 33 can be driven and the air pressure in the first heat dissipation chamber 32 can be improved to promote the air flow in the first heat dissipation chamber 32 to outwards The discharge solves the problems of demagnetization caused by the heat dissipation of the winding in the motor end and the stability reduction of the permanent magnet in the motor, and is also beneficial to the balance of the water temperature in the pipe body wound on the first motor 70 and the uniform heat dissipation.
Referring to fig. 8 of the specification, the heat sink assembly 60 includes:
a slide rail 66, the slide rail 66 is fixedly arranged on the inner wall of the second shell 20 corresponding to the first motor 70,
a second motor 62, the output end of the second motor 62 is arranged opposite to the first motor 70, the bottom of the second motor 62 is connected with a slide rail 66 in a sliding way, the output end of the second motor 62 is connected with a fan blade 63,
a hydraulic rod 61, the hydraulic rod 61 is fixedly connected with the inner wall of the second shell 20, the telescopic moving path of the hydraulic rod 61 is arranged in parallel with the slide rail 66, the telescopic end of the hydraulic rod 61 is connected with the side wall of the second connection 62,
a power supply module 67 connected to the second motor 62 is provided in the second casing 20.
The design of the heat dissipation assembly 60 is used for achieving heat dissipation of a heat-exchanging water body by utilizing air flow, reducing the temperature of the water body and transferring heat to air to be discharged, meanwhile, the air flow formed by rotation of the fan blades 63 driven by the second motor 62 can also improve the heat dissipation uniform effect of the device by improving the flow speed of air flow inside the device, particularly the flow effect of air flow near the first motor 70, in the working process of the second motor 62, the hydraulic rod 61 can be controlled to push the second motor 62 to slide relative to the sliding rail 66, the range of the flow interval of the air flow driven by rotation of the fan blades 63 is changed, and the problem that the existing heat dissipation device is difficult to achieve heat dissipation balance without changing the position is solved.
Referring to the description of fig. 6, a protection ring body 64 is connected to the outer side of the fan blade 63, a protection strip 65 with an arc structure is arranged on the outer side of the protection ring body 64, the protection ring body 64 is arranged on the outer side of the fan blade 63 in a manner of preventing the second motor 62 from rubbing against the inner wall of the second housing 20 in the moving process, so that the rotating speed of the fan blade 63 is reduced and the protection effect is achieved, and under the condition of collision and friction, the protection strip 65 on the side of the protection ring body 64 is firstly contacted to form friction, the friction loss caused by the contact between the protection ring body 64 and the inner wall of the second housing 20 is reduced by the designed manner that the protection strip 65 is contacted for the first time, and the deformation caused by the friction and contact of the protection strip 65 is favorable for rebounding the protection ring body 64 by using the friction and collision force, so that the relative position of the second motor 62 is finely adjusted, further friction and collision are avoided, and the protection strip 65 is contacted with the inner wall of the second housing 20, the shape of the protective strip 65 is smaller than the contact area with the shell wall, so that the harsh noise is easily formed to play a role in alarming.
Example 2:
embodiment 2 is compared with embodiment 1, and as shown in fig. 5-7 of the specification, the first motor 70 is sleeved with a limit support plate 80, the limit support plate 80 is annular and has a notch, the inner side of the limit support plate 80 is disposed with the first motor 70, and the outer side of the limit support plate 80 is disposed with the inner wall of the first casing 10. The design of the limit support plate 80 is used to support the first motor 70, to realize the stable assembly of the first motor 70 in the first housing 10, the spacing space between the first motor 70 is filled by the spacing support plate 80 to realize the reduction of vibration transmission between the first motor 70 and the spacing support plate, the rotation coaxiality and the like of the rotating shaft of the first motor 70 in the working process are also ensured, the spacing support plate 80 adopts a spacing distribution mode to be beneficial to uniform stress distribution, wherein, the limit supporting plate 80 is preferably installed at the end of the first motor 70, the tail of the first motor 70 is assembled with the first supporting plate body 11, so as to effectively limit and fix the two ends of the first motor 70, the manner of forming the notch on the limit support plate 80 is beneficial to the sleeving between the limit support plate 80 and the exterior of the first motor 70, and the opening of the gap is beneficial to the air flow to flow in the external space range of the first motor 70, so that the heat dissipation balance is realized.
The inner side of the limiting support plate 80 is surrounded by the limiting convex strips 81 at intervals, the water inlet end of the pump body 30 is connected with the conveying pipe body 31 of the water tank 50 through the space between the limiting support plate 80 and the first motor 70, and the side edge of the limiting support plate 80 is provided with the semicircular auxiliary through grooves 83 at intervals. The side of the limit supporting plate 80 is provided with a semi-through positioning matching hole 82, the adjacent limit supporting plates 80 are connected through a clamping block 84, and the clamping block 84 is matched with the positioning matching hole 82.
Spacing sand grip 81 that the interval set up is used for realizing the joint to conveying body 31, can realize carrying out effectual joint location to the peripheral conveying body 31 of the outside radiating fin of first motor 70 of winding under spacing backup pad 80 configuration effect like this, guarantee effective laminating improvement radiating effect of the radiating fin of conveying body 31 and first motor 70 like this, and under the condition that the air current passes through spacing backup pad 80, the slight vibrations that probably can make spacing backup pad 80 produce, conveying body 31 is favorable to absorbing the shaking force with shaking force transmission to conveying body 31 with spacing sand grip 81's contact, reduce the equipment not hard up loss and promote the incrustation scale caking division improvement heat transfer effect that the body inner wall probably exists under the condition that conveying body 31 absorbs the shaking energy.
Example 3:
referring to fig. 4 in the specification, the wall of the first casing 10 is provided with a rectangular inclined heat dissipating hole 12, and the heat dissipating holes 12 of the first heat dissipating chamber 32 and the second heat dissipating chamber 33 are inclined in opposite directions. The heat dissipation hole body 12 is provided to enable air to pass through the heat dissipation hole body 12 to enter and exit the first casing 10, so that in the heat dissipation process, the air passing in and out of the first casing 10 can bring heat out of the first casing 10 and facilitate cold air flow entering the first casing 10, the inclined arrangement of the heat dissipation hole body 12 helps the air flow flowing along the inner wall direction of the casing to flow outwards, so that the air flow exchanging heat with water in the first heat dissipation chamber 32 can be discharged quickly, the air flow entering the second heat dissipation chamber 33 through the first support plate body 11 reduces the flowing speed towards the first motor 70 and the casing wall direction due to the reduction of the air flow speed through the first support plate body 11, but the flowing speed is higher than that of the air flow near the first motor 70, and the flow balance heat dissipation of the air flow near the first motor 70 can be driven to be beneficial to take dust particles around the motor away and discharge from the heat dissipation hole body 12 direction, the heat dissipation hole bodies 12 of the first and second heat dissipation chambers are arranged in opposite inclination directions, so that surrounding air flows can be discharged in different directions, and heat exchange air flows are prevented from being discharged in a centralized manner.
It should be noted that, if necessary, heat dissipation holes corresponding to the positions of the heat dissipation assemblies 60 may be formed in the side wall of the second casing 20, so that the airflow can enter the second casing 20 conveniently, and the airflow flowing speed and the heat exchange efficiency are improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A power device for low-heat improvement of a new energy automobile comprises:
the heat dissipation device comprises a first shell (10), wherein two ends of the first shell (10) are arranged in a penetrating way, the middle part of the first shell is provided with a first supporting plate body (11) which is coaxial with the first supporting plate body, the inner space of the first supporting plate body (11) is divided into a first heat dissipation chamber (32) and a second heat dissipation chamber (33),
a first motor (70) is arranged in the first heat dissipation chamber (32);
the second shell (20), the second shell (20) is connected with one end of the first shell (10) provided with a second heat dissipation chamber (33) through a flange, and a heat dissipation assembly (60) is arranged in the second shell (20);
the third shell (40) is provided with one end connected with the first heat dissipation chamber (32) through a flange and the first shell (10), and the upper end and the lower end of the third shell (40) are respectively provided with the pump body (30) and the water tank (50);
wherein the water inlet end of the pump body (30) is connected with the water tank (50) through a conveying pipe body (31), the conveying pipe body (31) of the water inlet end of the pump body (30) connected with the water tank (50) penetrates through the first shell (10) and is wound on the first motor (70),
the water outlet end of the pump body (30) is connected with the water tank (50) through the conveying pipe body (31), and the conveying pipe body (31) connected with the water tank (50) at the water outlet end of the pump body (30) penetrates through the second shell (20) and passes through the heat dissipation range of the heat dissipation assembly (60).
2. The low-heat improved power device of the new energy automobile as claimed in claim 1, wherein: the utility model discloses a motor bearing structure, including first supporting plate body (11), the center department of first supporting plate body (11) offers and is used for first motor (70) to assemble spacing first spacing pilot hole (13), rectangular rectangle guiding hole body (14) have been seted up around first spacing pilot hole (13) on first supporting plate body (11), be equipped with guide plate (15) that can rotate in the guiding hole body (14).
3. The low-heat improved power device of the new energy automobile as claimed in claim 2, characterized in that: the wall of the first shell (10) is provided with a rectangular and obliquely arranged heat dissipation hole body (12) in an inclined manner, and the heat dissipation hole bodies (12) on the first heat dissipation chamber (32) and the second heat dissipation chamber (33) are arranged in opposite inclined directions.
4. The low-heat improved power device of the new energy automobile as claimed in claim 3, wherein: the heat dissipation assembly (60) includes:
the sliding rail (66) is fixedly arranged on the inner wall of the second shell (20) opposite to the first motor (70),
the output end of the second motor (62) is arranged opposite to the direction of the first motor (70), the bottom of the second motor (62) is connected with the sliding rail (66) in a sliding way, the output end of the second motor (62) is connected with fan blades (63),
the hydraulic rod (61), the hydraulic rod (61) is fixedly connected with the inner wall of the second shell (20), the telescopic moving path of the hydraulic rod (61) is arranged in parallel with the sliding rail (66), and the telescopic end of the hydraulic rod (61) is connected with the side wall of the second connecting part (62),
and a power supply assembly (67) connected with the second motor (62) is arranged in the second shell (20).
5. The low-heat improved power device of the new energy automobile as claimed in claim 4, wherein: the outer side of the fan blade (63) is connected with a protection ring body (64), and the outer side of the protection ring body (64) is provided with a protection strip (65) of an arc-shaped structure.
6. The low-heat improved power device of the new energy automobile according to claim 3 or 5, characterized in that: the outer cover of first motor (70) is equipped with spacing backup pad (80), spacing backup pad (80) are the ring form, have a breach, spacing backup pad (80) inboard sets with first motor (70), spacing backup pad (80) outside sets with first casing (10) inner wall.
7. The low-heat improved power device of the new energy automobile as claimed in claim 6, wherein: the inner side of the limit supporting plate (80) is provided with spaced limit convex strips (81) in a surrounding way, the conveying pipe body (31) of which the water inlet end of the pump body (30) is connected with the water tank (50) passes through the space between the limit supporting plate (80) and the first motor (70),
semicircular auxiliary through grooves (83) are formed in the side edge of the limiting supporting plate (80) at intervals.
8. The low-heat improved power device of the new energy automobile as claimed in claim 7, wherein: the side face of each limiting support plate (80) is provided with a semi-through positioning matching hole (82), adjacent limiting support plates (80) are connected through a clamping block (84), and the clamping block (84) is matched with the positioning matching hole (82).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111355456.6A CN114024394B (en) | 2021-11-16 | 2021-11-16 | Power device of new energy automobile low-heat improvement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111355456.6A CN114024394B (en) | 2021-11-16 | 2021-11-16 | Power device of new energy automobile low-heat improvement |
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| CN114024394B CN114024394B (en) | 2022-06-17 |
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| CN115102329A (en) * | 2022-08-24 | 2022-09-23 | 杭州重红科技有限公司 | New forms of energy motor heat sink |
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| Publication number | Publication date |
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| CN114024394B (en) | 2022-06-17 |
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