CN112265429A - Mounting and fixing device for PTC heater of new energy automobile and using method of mounting and fixing device - Google Patents
Mounting and fixing device for PTC heater of new energy automobile and using method of mounting and fixing device Download PDFInfo
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- CN112265429A CN112265429A CN202011167217.3A CN202011167217A CN112265429A CN 112265429 A CN112265429 A CN 112265429A CN 202011167217 A CN202011167217 A CN 202011167217A CN 112265429 A CN112265429 A CN 112265429A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 13
- 239000010720 hydraulic oil Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 11
- 238000013459 approach Methods 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H2001/2268—Constructional features
- B60H2001/2278—Connectors, water supply, housing, mounting brackets
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Abstract
The invention relates to the field of new energy automobile production, in particular to an installation and fixation device for a PTC heater of a new energy automobile and a use method thereof. The mounting and fixing device for the PTC heater of the new energy automobile and the using method of the mounting and fixing device achieve rapid mounting and dismounting of the PTC heater, and a frame does not need to be drilled, so that the frame is protected, and the PTC heater can be protected in a buffering mode.
Description
Technical Field
The invention relates to the field of new energy automobile production, in particular to an installation and fixation device for a PTC heater of a new energy automobile and a use method thereof.
Background
The PCT heater is a commonly used heating electric device for the new energy automobile, and needs to be installed on the new energy automobile after being packaged.
When installing current to the PCT heater, adopt welded connection spare and utilize bolt and frame fixed connection usually, have and need drill consequently to have the damage to the frame, and need a plurality of bolt assembly to carry out fixed connection, the operation is loaded down with trivial details, be not convenient for installation and dismantlement, waste time and energy, and because the vehicle can produce the vibration between the in-process of traveling and road surface, thereby pass vibration to PCT heater department through the frame, and then make the junction of PCT heater and frame easily become flexible or damage, lead to the installation of PCT heater insecure, appear damaging easily.
We propose a mounting and fixing device for a PTC heater of a new energy automobile and a using method thereof.
Disclosure of Invention
The invention aims to provide a mounting and fixing device for a PTC heater of a new energy automobile and a using method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an installation fixing device for new energy automobile PTC heater, which comprises a vehicle rack, set up the recess that is used for the installation fixed PTC heater on the frame, be provided with the clamping mechanism that is used for compressing tightly to the PTC heater on the lateral wall of recess, the inboard bottom of recess is provided with self-adaptation fastening device, self-adaptation fastening device is connected with the transmission of clamping mechanism, the PTC heater accessible exerts the holding down force to self-adaptation fastening device when the installation, make self-adaptation fastening device drive clamping mechanism press from both sides the clamp to fix to the PTC heater, the detachable fixed connection apron of port on the recess, the bottom center department of recess is provided with the latched device who is used for restricting self-adaptation fastening device to reset.
Preferably, the self-adaptation fastening mechanism includes two hydraulic pressure section of thick bamboo two, two the vertical central line symmetry formula setting with the recess of two hydraulic pressure sections of thick bamboo, the inside sliding connection piston board two of two hydraulic pressure sections of thick bamboo, the upper surface of piston board two is connected with the inside roof of two hydraulic pressure sections of thick bamboo through spring two, the upper surface of piston board two is perpendicular and fixed connection slide bar, the upper end of slide bar is fixed with the wedge, the bottom of PTC heater is fixed with the lug, the bottom side of lug sets up the inclined plane with the wedge looks adaptation of wedge.
Preferably, the outside top surface of the second hydraulic cylinder is fixed with the first sliding cylinder, the sliding rod can slide up and down in the first sliding cylinder, the second sliding cylinder is fixed and communicated on the outer side wall of the first sliding cylinder, the inside of the second sliding cylinder is connected with the locking rod in a sliding manner, an upward wedge-shaped surface is arranged at one end of the locking rod pointing to the inside of the first sliding cylinder, a catching groove is formed in the sliding rod, one end of the locking rod pointing to the inside of the first sliding cylinder can be inserted into the catching groove, the bottom of the side wall of the second hydraulic cylinder is fixed and communicated with a valve cylinder, a first sealing ring is fixed on the inner wall of one end of the valve cylinder pointing to the second hydraulic cylinder, a first ball is arranged in the.
Preferably, the locking mechanism comprises a threaded sleeve fixed at the center of the bottom surface inside the groove, a screw rod is connected to the inner thread of the threaded sleeve, the lower end of the screw rod penetrates through the bottom of the groove and is located on the outer side of the groove, a lifting rod is coaxially arranged at the upper end of the screw rod, and the lifting rod is connected to the upper end of the screw rod in a rotating mode through a fixed shaft.
Preferably, the locking mechanism further comprises pull rods symmetrically arranged on two sides of the lifting rod, the pull rods are hinged to the lifting rod through connecting rods, the two pull rods correspond to the two hydraulic cylinders one to one, a first push rod and a second push rod corresponding to the sliding cylinder II and the valve cylinder are vertically and fixedly connected to the pull rods, the first push rod can slide in the corresponding sliding cylinder II, the first push rod is connected with the corresponding locking rod through a fourth spring, and the second push rod is connected with the corresponding first ball through a third spring.
Preferably, the self-adaptive fastening mechanism further comprises a first hydraulic cylinder which is in one-to-one correspondence with a second hydraulic cylinder, a first piston plate is connected to the inside of the first hydraulic cylinder in a sliding mode, the first piston plate is in transmission connection with the clamping mechanism, the central axis of the first hydraulic cylinder is perpendicular to the central axis of the second hydraulic cylinder, the first hydraulic cylinder is communicated with a corresponding valve cylinder through a first hydraulic pipe, a hydraulic oil tank is fixed to the bottom surface of the inside of the groove, the bottom of the second hydraulic cylinder is communicated with the hydraulic oil tank through a third hydraulic pipe, a check valve is connected to the third hydraulic pipe, and the conduction direction of the check valve points to the second hydraulic cylinder.
Preferably, one end of the first hydraulic cylinder facing the second hydraulic cylinder is fixed and communicated with the pressure relief cylinder, a sealing ring II is fixed on the inner wall of one end, connected with the first hydraulic cylinder, of the pressure relief cylinder, a ball II is arranged inside the pressure relief cylinder and can seal the sealing ring II, and the ball II is connected with one end, far away from the first hydraulic cylinder, of the pressure relief cylinder through a spring five.
Preferably, the clamping mechanism comprises brackets which are fixed on the inner side walls opposite to the grooves and symmetrically arranged, two opposite ends of the brackets are fixedly and rotatably connected with gears in a fixed shaft mode, bayonets are formed in the gears, pressing blocks facing the inner sides of the bayonets are fixed on the inner sides of the opening ends of the bayonets, buckling plates corresponding to the bayonets are fixed on the side walls of the PTC heater, the pressing blocks can be in buckling contact with the buckling plates, and the pressure relief cylinder is communicated with a hydraulic oil tank through a hydraulic pipe II.
Preferably, one side of the piston plate I, which faces the side wall of the groove, is vertical and fixedly connected with the rack, one end of the rack, which deviates from the piston plate I, penetrates through the end wall of the hydraulic cylinder I, which deviates from the hydraulic cylinder II, one end, which is located outside the hydraulic cylinder I, of the rack is connected with the corresponding inner side wall of the groove through a spring I, the rack is located on the lower side of the corresponding gear, and the rack is connected with the gear in a meshed manner.
The application correspondingly provides a use method of the mounting and fixing device for the PTC heater of the new energy automobile, which comprises the following steps:
the method comprises the following steps: the PTC heater is placed on the self-adaptive fastening mechanism in the groove, and downward pressure is applied to the self-adaptive fastening mechanism, so that the self-adaptive fastening mechanism drives the clamping mechanism to tightly press and fix the PTC heater;
step two: the PTC heater is buffered and protected by the self-adaptive fastening mechanism in the process that the frame transmits vibration to the PTC heater, and the PTC heater is further pressed and fixed by the driving clamping mechanism;
step three: the self-adaptive fastening mechanism is released from the limit through the locking mechanism, so that the self-adaptive fastening mechanism drives the clamping mechanism to loosen the PTC heater, and the self-adaptive fastening mechanism automatically ejects the PTC heater out of the groove.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the PTC heater is placed on the self-adaptive fastening mechanism in the groove, and downward pressure is applied to the self-adaptive fastening mechanism, so that the self-adaptive fastening mechanism drives the clamping mechanism to compress and fix the PTC heater;
in the invention, the PTC heater is buffered and protected by the self-adaptive fastening mechanism in the process of transmitting vibration to the PTC heater by the frame, the service life of the PTC heater is prolonged, and the PTC heater is further pressed and fixed by the driving clamping mechanism, so that the PTC heater is always stably and firmly arranged in the groove, and the safety of the PTC heater is ensured.
Drawings
FIG. 1 is a first schematic view of the cross-sectional structure of the final assembly of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
FIG. 4 is an enlarged view of the structure at C in FIG. 1;
FIG. 5 is a schematic view of the cross-sectional structure of the final assembly of the present invention;
FIG. 6 is an enlarged view of the structure at D in FIG. 5;
FIG. 7 is an enlarged view of the structure at E in FIG. 5;
FIG. 8 is a third schematic view of the cross-sectional structure of the final assembly of the present invention;
FIG. 9 is an enlarged view of the structure at F in FIG. 8;
fig. 10 is an enlarged schematic view of the structure at G in fig. 8.
In the figure: 1. a frame; 2. a first spring; 3. a rack; 4. a support; 5. a gear; 6. a bayonet; 7. briquetting; 8. a first hydraulic cylinder; 9. a piston plate I; 10. a second bracket; 11. a hydraulic oil tank; 12. a first hydraulic pipe; 13. a second hydraulic pipe; 14. a pressure relief cylinder; 15. a cover plate; 16. a wedge block; 17. a slide bar; 18. a first sliding cylinder; 19. a hydraulic pipe III; 20. a one-way valve; 21. a second sliding cylinder; 22. a first push rod; 23. a second spring; 24. a second piston plate; 25. a pull rod; 26. a valve barrel; 27. a connecting rod; 28. a lifting rod; 29. a second hydraulic cylinder; 30. a second push rod; 31. a screw; 32. a threaded sleeve; 33. buckling the plate; 34. a third spring; 35. buckling grooves; 36. a fourth spring; 37. a lock lever; 38. a first ball; 39. a first sealing ring; 40. a fifth spring; 41. a second ball bearing; 42. and a second sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 10, the present invention provides a technical solution: the mounting and fixing device comprises a vehicle frame 1, wherein a groove for mounting and fixing the PTC heater is formed in the vehicle frame 1, a clamping mechanism for compressing the PTC heater is arranged on the side wall of the groove, a self-adaptive fastening mechanism is arranged at the bottom of the inner side of the groove and is in transmission connection with the clamping mechanism, the PTC heater can exert downward pressure on the self-adaptive fastening mechanism during mounting, so that the self-adaptive fastening mechanism drives the clamping mechanism to clamp and fix the PTC heater, a cover plate 15 is fixedly connected with an upper port of the groove in a detachable mode, and a locking mechanism for limiting the resetting of the self-adaptive fastening mechanism is arranged at the center of the bottom of the groove.
In this embodiment, as shown in fig. 1, 5 and 8, the adaptive fastening mechanism includes two hydraulic cylinders 29, the two hydraulic cylinders 29 are symmetrically disposed with respect to a vertical center line of the groove, a piston plate 24 is slidably connected inside the hydraulic cylinders 29, an upper surface of the piston plate 24 is connected to an inner top wall of the hydraulic cylinders 29 through a spring plate 23, an upper surface of the piston plate 24 is vertically and fixedly connected to a sliding rod 17, a wedge block 16 is fixed to an upper end of the sliding rod 17, a protrusion is fixed to a bottom of the PTC heater, and an inclined surface adapted to a wedge surface of the wedge block 16 is disposed on a side edge of a bottom of the protrusion.
In this embodiment, as shown in fig. 2, 3, 6, 7, 9 and 10, a first sliding barrel 18 is fixed on the top surface of the outer side of a second hydraulic barrel 29, a sliding rod 17 can slide up and down inside the first sliding barrel 18, a second sliding barrel 21 is fixed and communicated on the outer side wall of the first sliding barrel 18, a locking rod 37 is connected inside the second sliding barrel 21 in a sliding manner, an upward wedge-shaped surface is arranged at one end of the locking rod 37, which points to the inside of the first sliding barrel 18, a catching groove 35 is formed in the sliding rod 17, one end of the locking rod 37, which points to the inside of the first sliding barrel 18, can be inserted into the catching groove 35, a valve barrel 26 is fixed and communicated at the bottom of the side wall of the second hydraulic barrel 29, a first sealing ring 39 is fixed on the inner wall of one end of the valve barrel 26, which points to the second hydraulic barrel 29, a first ball 38 is.
In this embodiment, as shown in fig. 1, 5 and 8, the locking mechanism includes a threaded sleeve 32 fixed at the center of the bottom surface inside the groove, a threaded rod 31 is connected to the threaded sleeve 32 through threads, the lower end of the threaded rod 31 penetrates through the bottom of the groove and is located outside the groove, a lifting rod 28 is coaxially arranged at the upper end of the threaded rod 31, and the lifting rod 28 is connected to the upper end of the threaded rod 31 in a fixed-axis rotation manner.
In this embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9 and fig. 10, the locking mechanism further includes pull rods 25 symmetrically disposed on both sides of the lift rod 28, the pull rods 25 are hinged to the lift rod 28 through a connecting rod 27, the two pull rods 25 correspond to the two hydraulic cylinders 29 one by one, the pull rods 25 are vertically and fixedly connected with a first push rod 22 and a second push rod 30 corresponding to the second slide cylinder 21 and the valve cylinder 26, the first push rod 22 can slide in the corresponding second slide cylinder 21, the first push rod 22 is connected to a corresponding lock rod 37 through a fourth spring 36, and the second push rod 30 is connected to a corresponding first ball 38 through a third spring 34.
In this embodiment, as shown in fig. 1, 5, and 8, the adaptive fastening mechanism further includes a first hydraulic cylinder 8 corresponding to a second hydraulic cylinder 29 one by one, the first hydraulic cylinder 8 is connected with a first piston plate 9 in a sliding manner, the first piston plate 9 is connected with the clamping mechanism in a transmission manner, a central axis of the first hydraulic cylinder 8 is perpendicular to a central axis of the second hydraulic cylinder 29, the first hydraulic cylinder 8 is communicated with a corresponding valve cylinder 26 through a first hydraulic pipe 12, a hydraulic oil tank 11 is fixed to the bottom surface inside the groove, the bottom of the second hydraulic cylinder 29 is communicated with the hydraulic oil tank 11 through a third hydraulic pipe 19, the third hydraulic pipe 19 is connected with a check valve 20, and a conduction direction of the check valve 20 points to the second hydraulic cylinder 29.
In this embodiment, as shown in fig. 1 and 4, one end of the first hydraulic cylinder 8 facing the second hydraulic cylinder 29 is fixed and communicated with the pressure relief cylinder 14, a second sealing ring 42 is fixed on an inner wall of one end of the pressure relief cylinder 14 connected with the first hydraulic cylinder 8, a second ball 41 is arranged inside the pressure relief cylinder 14, the second ball 41 can seal the second sealing ring 42, and the second ball 41 is connected with one end of the pressure relief cylinder 14 far from the first hydraulic cylinder 8 through a fifth spring 40.
In this embodiment, as shown in fig. 1, 5 and 8, the clamping mechanism includes brackets 4 fixed on the inner side walls opposite to the grooves and symmetrically disposed, two ends opposite to the brackets 4 are connected to the gear 5 in a fixed-axis rotation manner, a bayonet 6 is disposed on the gear 5, a pressing block 7 facing the inside of the bayonet 6 is fixed on the inside of an opening end of the bayonet 6, a fastening plate 33 corresponding to the bayonet 6 is fixed on the side wall of the PTC heater, the pressing block 7 can be in abutting contact with the fastening plate 33, and the pressure relief cylinder 14 is communicated with the hydraulic oil tank 11 through a second hydraulic pipe 13.
In this embodiment, as shown in fig. 1, 5 and 8, one side of the piston plate one 9 facing the side wall of the groove is vertically and fixedly connected with the rack 3, one end of the rack 3 facing away from the piston plate one 9 penetrates through the end wall of the hydraulic cylinder one 8 facing away from the hydraulic cylinder two 29, one end of the rack 3 located outside the hydraulic cylinder one 8 is connected with the corresponding inner side wall of the groove through the spring one 2, the rack 3 is located at the lower side of the corresponding gear 5, and the rack 3 is in meshed connection with the gear 5.
The use method of the invention is given below, and the operation process of the mounting and fixing device for the PTC heater of the new energy automobile when the PTC heater is mounted and dismounted is as follows:
the method comprises the following steps: when the PTC heater is installed, as shown in fig. 8, 9 and 10, at this time, under the action of the elastic force of the second spring 23, the second piston plate 24 moves upwards and drives the wedge block 16 to move upwards through the sliding rod 17, the first push rod 22 applies thrust to the lock rod 37 through the fourth spring 36, the lock rod 37 is not inserted into the buckle slot 35, the second push rod 30 pushes the first ball 38 through the third spring 34 to plug the first seal ring 39, at this time, the cover plate 15 is in an open state, and the cover plate 15 can be connected with the plug in connection in a conventional detachable fixed connection mode such as a bolt assembly, so that the installation and the detachment of the PTC heater are facilitated;
the opening of the groove of the PTC heater is placed towards the inside of the groove, the inclined plane at the bottom edge of the convex block is in abutting contact with the wedge-shaped surface of the wedge-shaped block 16, then the PTC heater applies downward force to the wedge-shaped block 16, so that the wedge-shaped block 16 presses the second piston plate 24 downwards through the sliding rod 17, the second piston plate 24 moves downwards in the second hydraulic cylinder 29, the second spring 23 is stretched, the second spring 23 obtains restoring force, the downward movement of the second piston plate 24 compresses hydraulic oil in the second hydraulic cylinder 29, the conduction direction of the check valve 20 points to the inside of the second hydraulic cylinder 29, pressure is applied to the first ball 38 after the hydraulic oil in the second hydraulic cylinder 29 is pressurized, the first ball 38 compresses the third spring 34, the third spring 34 obtains restoring force, the first sealing ring 39 is in the open state, and the hydraulic oil in the second hydraulic cylinder 29 enters the first hydraulic cylinder 8 through the first valve cylinder 26 and the first hydraulic pipe 12 after being subjected to the pressure of the second piston plate 24, therefore, hydraulic oil in the hydraulic cylinder I8 is increased and pushes the piston plate I9 to synchronously drive the inner side wall of the corresponding groove of the rack 3 box to approach, meanwhile, the rack 3 compresses the spring I2 and the spring I2 obtains restoring force, the gear 5 is driven to rotate through the tooth transmission effect between the rest gears 5 of the rack 3 in the process that the rack 3 approaches the inner side wall of the groove, so that the gear 5 drives the pressing block 7 on the inner wall of the bayonet 6 to approach the corresponding buckle plate 33 and to be in abutting and buckling contact with the buckle plate 33, the pressing block 7 is pressed and fixed on the buckle plate 33, the compression and fixation of the PTC heater are further realized, the quick installation of the PTC heater is realized, and the time and the labor are;
as described above, when the end of the locking groove 35 corresponds to the end of the locking rod 37 in the process of moving the sliding rod 17 downwards, the locking rod 37 is inserted into the locking groove 35 under the action of the restoring force of the spring four 36, so that the locking rod 37 limits the sliding rod 17 from moving upwards under the action of the restoring force of the spring two 23, the PTC heater is prevented from being ejected upwards by the wedge block 16, and the PTC heater is stably and firmly installed in the groove, thus the damaged installation is not required to be carried out by adopting a plurality of groups of bolt assemblies, the time and the efficiency are saved, and the overall strength of the vehicle frame is ensured;
step two: after the PTC heater is installed, the cover plate 15 is used for sealing the groove, so that the PTC heater is protected;
in the running process of a vehicle, when the vehicle transmits vertical vibration, the lug at the bottom of the PTC heater applies vertical force to the wedge-shaped block 16 and cooperates with the action of the second spring 23, so that the wedge-shaped block 16 has a trend of moving up and down, when the vehicle transmits left and right vibration, the lug at the bottom of the PTC heater applies pressure perpendicular to the wedge-shaped surface of the wedge-shaped block 16, so that the wedge-shaped block 16 is subjected to component force action of the pressure in the vertical direction under the component force action of the wedge-shaped surface, so that the wedge-shaped block 16 has a trend of moving down, and cooperates with the action of the second spring 23, so that the wedge-shaped block 16 has a trend of moving up and down, so that vibration in each direction, which is applied to the vehicle, is transferred to the driving force of the downward movement of the wedge-shaped block 16 through the cooperation of the wedge-shaped block 16 and the lug, and the slide rod 17 drives the second piston, therefore, the hydraulic oil in the hydraulic cylinder II 29 is conveyed into the hydraulic cylinder I8 through the valve cylinder 26 and the hydraulic pipe I12, the rack 3 is pushed to approach the inner side wall of the groove through the piston plate I9, the rack 3 drives the gear 5 to rotate in the direction shown in the step I, and the pressing block 7 further exerts downward force on the buckling plate 33, so that the PTC heater can be always stably and firmly installed in the groove when being vibrated by a vehicle, and the vibration of the PTC heater is buffered and protected through the spring II 23, the spring I2 and the hydraulic oil, so that the safety of the PTC heater is ensured;
when the PTC heater is vibrated to move upwards, the wedge block 16 is stressed and reduced, the piston plate II 24 drives the sliding rod 17 and the wedge block 16 to move upwards under the action of the restoring force of the spring II 23, the wedge block 16 is ensured to be always attached and contacted with a convex block at the bottom of the PTC heater, the PTC heater is prevented from shaking due to the gap, the installation is unstable, the conduction direction of the check valve 20 points to the hydraulic cylinder II 29, and the ball I38 seals the sealing ring I39 under the action of the restoring force of the spring III 34, so that the hydraulic cylinder II 29 sucks hydraulic oil into the hydraulic oil tank 11 through the hydraulic pipe III 19, the hydraulic oil in the hydraulic cylinder II 29 is supplemented, and the hydraulic oil in the hydraulic cylinder II 29 is continuously conveyed into the hydraulic cylinder I8 through the piston plate II 24 due to the vibration of the PTC heater in the hydraulic cylinder I8, thereby causing the pressure inside the hydraulic cylinder I8 to be continuously increased, causing the piston plate I9 to be under the pressure action of the hydraulic oil to drive the rack 3 to drive the gear 5 to rotate, causing the gear 5 to drive the pressing block 7 to apply downward pressure on the buckling plate 33, therefore, the PTC heater is always stably and firmly arranged in the groove, when the pressure in the hydraulic cylinder I8 is higher, the pressure exerted by the hydraulic oil on the ball II 41 is higher than the elastic force of the spring V40, thereby leading the ball II 41 to compress the spring V40 and leading the sealing ring II 42 to be opened, leading the hydraulic oil in the hydraulic cylinder I8 to be conveyed into the hydraulic oil tank 11 through the pressure relief cylinder 14 and the hydraulic pipe II 13, therefore, the phenomenon that the gear 5 continuously applies downward pressure to the PTC heater through the pressing block 7 and the buckle plate 33 due to the fact that the internal pressure of the hydraulic cylinder I8 is too high, the whole device does not have a buffering stroke, and the buffering protection effect of the whole device on the PTC heater is guaranteed;
step three: when the PTC heater needs to be detached from the groove of the frame 1 and taken out, as shown in fig. 5, 6 and 7, the cover plate 15 is firstly opened, the screw 31 is rotated, the lifting rod 28 is driven to move downwards through screw transmission, so that the lifting rod 28 applies a pulling force to the pull rod 25 through the connecting rod 27, so that the two pull rods 25 approach each other, the push rod one 22 applies a pulling force to the lock rod 37 through the spring four 36, so that the lock rod 37 is separated from the buckle groove 35, meanwhile, the push rod two 30 pulls the ball one 38 through the spring three 34, so that the ball one 38 does not block the seal ring, further, the rack 3 moves in a direction away from the inner side wall of the groove under the restoring force of the spring one 2, and the gear 5 is driven to rotate reversely as described in the step one, so that the gear 5 drives the pressing block 7 to be away from the buckle plate 33, and further releases the pressing and fixing of, namely, the compression fixation of the PTC heater is released, the rack 3 pushes the piston plate I9 to compress the hydraulic oil in the hydraulic cylinder I8 while moving in the direction away from the inner side wall of the groove, so that the hydraulic oil in the hydraulic cylinder I8 enters the hydraulic cylinder II 29 through the hydraulic pipe I12 and the valve cylinder 26, and the hydraulic oil pushes the piston plate II 24 to move upwards, further the piston plate II 24 synchronously drives the wedge block 16 to move upwards through the slide rod 17, so that the wedge block 16 pushes the PTC heater outwards from the groove through the convex block, the disassembly of the PTC heater is realized, the whole installation and disassembly process of the PTC heater is simple, time and labor are saved, the operation is very convenient, the frame 1 is protected, the whole device can buffer the vibration generated to the PTC heater in the vehicle running process, and the PTC heater is protected, the service life of the PTC heater is prolonged.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an installation fixing device for new energy automobile PTC heater, includes frame (1), its characterized in that: the improved PTC heater clamping device is characterized in that a groove for installing and fixing the PTC heater is formed in the vehicle frame (1), a clamping mechanism for compressing the PTC heater is arranged on the side wall of the groove, a self-adaptive fastening mechanism is arranged at the bottom of the inner side of the groove and is in transmission connection with the clamping mechanism, the PTC heater can exert downward pressure on the self-adaptive fastening mechanism when being installed, the self-adaptive fastening mechanism drives the clamping mechanism to clamp and fix the PTC heater, a cover plate (15) is fixedly connected with a detachable port of the groove, and a locking mechanism for limiting the resetting of the self-adaptive fastening mechanism is arranged at the center of the bottom of the groove.
2. The mounting and fixing device for the PTC heater of the new energy automobile according to claim 1, wherein: the self-adaptive fastening mechanism comprises two second hydraulic cylinders (29), and the two second hydraulic cylinders (29) are symmetrically arranged on a vertical center line of the groove.
3. The mounting and fixing device for the PTC heater of the new energy automobile according to claim 2, wherein: the inside of the second hydraulic cylinder (29) is connected with a second piston plate (24) in a sliding mode, the upper surface of the second piston plate (24) is connected with the top wall of the inside of the second hydraulic cylinder (29) through a second spring (23), the upper surface of the second piston plate (24) is perpendicular to and fixedly connected with a sliding rod (17), a wedge-shaped block (16) is fixed to the upper end of the sliding rod (17), a protruding block is fixed to the bottom of the PTC heater, and an inclined plane matched with the wedge-shaped face of the wedge-shaped block (16) is arranged on the side edge of the bottom of the protruding block; a first sliding cylinder (18) is fixed on the top surface of the outer side of the second hydraulic cylinder (29), the sliding rod (17) can slide up and down in the first sliding cylinder (18), a second sliding cylinder (21) is fixed and communicated on the outer side wall of the first sliding cylinder (18), a lock rod (37) is connected inside the second sliding cylinder (21) in a sliding manner, one end of the lock rod (37) pointing to the inside of the first sliding barrel (18) is provided with an upward wedge-shaped surface, a buckle groove (35) is arranged on the sliding rod (17), one end of the lock rod (37) pointing to the inside of the sliding cylinder I (18) can be inserted into the buckle groove (35), the bottom of the side wall of the second hydraulic cylinder (29) is fixed and communicated with a valve cylinder (26), a first sealing ring (39) is fixed on the inner wall of one end of the valve cylinder (26) pointing to the second hydraulic cylinder (29), a first ball (38) is arranged in the valve cylinder (26), and the first ball (38) can seal a first sealing ring (39).
4. A mounting and fixing device for a PTC heater of a new energy automobile according to claim 3, characterized in that: the locking mechanism comprises a threaded sleeve (32) fixed at the center of the bottom surface inside the groove, a screw rod (31) is connected to the inner thread of the threaded sleeve (32), the lower end of the screw rod (31) penetrates through the outer side of the groove, the bottom of the groove is located in the groove, a lifting rod (28) is coaxially arranged at the upper end of the screw rod (31), and the lifting rod (28) is fixed to rotate and connected to the upper end of the screw rod (31).
5. A mounting and fixing device for a PTC heater of a new energy automobile according to claim 4, characterized in that: the locking mechanism further comprises pull rods (25) symmetrically arranged on two sides of the lifting rod 28, the pull rods (25) are hinged to the lifting rod (28) through connecting rods (27), the pull rods (25) correspond to two hydraulic cylinders (29) one by one, push rods (22) and push rods (30) corresponding to sliding cylinders (21) and valve cylinders (26) are vertically and fixedly connected to the pull rods (25), the push rods (22) can slide in the corresponding sliding cylinders (21), the push rods (22) are connected with corresponding locking rods (37) through springs (four) (36), and the push rods (30) are connected with corresponding balls (38) through springs (three (34).
6. A mounting and fixing device for a PTC heater of a new energy automobile according to claim 3, characterized in that: the self-adaptive fastening mechanism further comprises first hydraulic cylinders (8) which correspond to the second hydraulic cylinders (29) one by one, piston plates (9) are connected to the insides of the first hydraulic cylinders (8) in a sliding mode, the piston plates (9) are in transmission connection with the clamping mechanism, the central axis of each first hydraulic cylinder (8) is perpendicular to that of the corresponding second hydraulic cylinder (29), the first hydraulic cylinders (8) are communicated with the corresponding valve cylinders (26) through first hydraulic pipes (12), hydraulic oil tanks (11) are fixed to the bottom faces of the insides of the grooves, the bottoms of the second hydraulic cylinders (29) are communicated with the hydraulic oil tanks (11) through third hydraulic pipes (19), one-way valves (20) are connected to the third hydraulic pipes (19), and the conducting directions of the one-way valves (20) point to the second hydraulic cylinders (29); one end, facing the second hydraulic cylinder (29), of the first hydraulic cylinder (8) is fixed and communicated with a pressure relief cylinder (14), a sealing ring II (42) is fixed on the inner wall of one end, connected with the first hydraulic cylinder (8), of the pressure relief cylinder (14), a ball II (41) is arranged inside the pressure relief cylinder (14), the ball II (41) can seal the sealing ring II (42), and the ball II (41) is connected with one end, far away from the first hydraulic cylinder (8), of the pressure relief cylinder (14) through a spring five (40); clamping mechanism is including fixing support (4) on the relative inside wall of recess and the setting of symmetry formula, two the one end dead axle that support (4) are relative rotates and is connected with gear (5), bayonet socket (6) have been seted up on gear (5), the opening one end inboard of bayonet socket (6) is fixed with briquetting (7) inboard towards the buckle, fixed buckle (33) corresponding with bayonet socket (6) on the lateral wall of PTC heater, briquetting (7) can support the knot with buckle (33) and contact, pressure release section of thick bamboo (14) are linked together through hydraulic pressure pipe two (13) and hydraulic tank (11).
7. A mounting and fixing device for a PTC heater of a new energy automobile according to claim 6, characterized in that: one side of the piston plate I (9) facing the side wall of the groove is vertical and fixedly connected with the rack (3).
8. A mounting and fixing device for a PTC heater of a new energy automobile according to claim 7, characterized in that: one end of the rack (3) departing from the first piston plate (9) penetrates through the end wall of the first hydraulic cylinder (8) departing from the second hydraulic cylinder (29), and one end, located outside the first hydraulic cylinder (8), of the rack (3) is connected with the corresponding inner side wall of the groove through the first spring (2).
9. The mounting and fixing device for the PTC heater of the new energy automobile according to claim 8, wherein: the racks (3) are positioned at the lower sides of the corresponding gears (5), and the racks (3) are meshed with the gears (5).
10. The use method of the mounting and fixing device for the PTC heater of the new energy automobile according to claim 4, is characterized in that: the method comprises the following steps:
the method comprises the following steps: the PTC heater is placed on the self-adaptive fastening mechanism in the groove, and downward pressure is applied to the self-adaptive fastening mechanism, so that the self-adaptive fastening mechanism drives the clamping mechanism to tightly press and fix the PTC heater;
step two: in the process that the frame (1) transmits vibration to the PTC heater, the PTC heater is buffered and protected through the self-adaptive fastening mechanism, and the PTC heater is further pressed and fixed by the driving clamping mechanism;
step three: the self-adaptive fastening mechanism is released from the limit through the locking mechanism, so that the self-adaptive fastening mechanism drives the clamping mechanism to loosen the PTC heater, and the self-adaptive fastening mechanism automatically ejects the PTC heater out of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167217.3A CN112265429A (en) | 2020-10-26 | 2020-10-26 | Mounting and fixing device for PTC heater of new energy automobile and using method of mounting and fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167217.3A CN112265429A (en) | 2020-10-26 | 2020-10-26 | Mounting and fixing device for PTC heater of new energy automobile and using method of mounting and fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112265429A true CN112265429A (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011167217.3A Withdrawn CN112265429A (en) | 2020-10-26 | 2020-10-26 | Mounting and fixing device for PTC heater of new energy automobile and using method of mounting and fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112265429A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113665321A (en) * | 2021-09-03 | 2021-11-19 | 江苏九州电器有限公司 | Carriage electric heater with water conservancy diversion function |
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Application publication date: 20210126 |
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