Automobile evaporator with defrosting device

Abstract

The utility model relates to the field of automobile evaporators, and discloses an automobile evaporator with a defrosting device, which comprises an evaporator shell, the top of the evaporator shell is fixedly connected with a bracket, the front side of the bracket is provided with a driving mechanism, the bracket is internally provided with a defrosting mechanism, the defrosting mechanism comprises a fixing rod, and the fixing rod is fixedly connected with the evaporator shell. The left end and the right end of the fixing rod are fixedly connected with moving blocks, a groove is formed in the support, the moving blocks are installed in the groove in a sliding mode, the outer wall of the fixing rod is rotationally connected with a roller, and the outer wall of the roller is fixedly connected with a scraping plate. According to the ice and frost sweeping device, through cooperation of the stepping motor, the reciprocating lead screw, the fixing rod, the moving block, the groove, the roller, the scraping plates, the gear and the rack, the roller can still rotate during linear displacement, the rotating direction of the contact point of the roller and an evaporator shell is the same as the advancing direction of the roller, and therefore the ice and frost sweeping effect is improved when the roller drives the multiple scraping plates to rotate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile evaporator, especially a kind of automobile evaporator with defrosting device. BACKGROUND

[0002] Evaporator is one of the components of automobile air conditioning system, is the place that refrigerant in air conditioning system changes from liquid state into gaseous state, i.e. evaporates and absorbs heat, achieves the effect of refrigeration, and automobile evaporator with defrosting device is mainly applied in automobile air conditioning system, especially those vehicles that need to frequently operate in low temperature or humid environment, these environments are prone to frost on the surface of evaporator, thereby affecting the refrigeration effect and operating efficiency of air conditioning system, and the function of defrosting needs to be increased.

[0003] Through retrieval, Chinese patent publication No. CN212457537U discloses an automobile evaporator with defrosting device, which includes an automobile evaporator body, both sides of the automobile evaporator body are fixedly connected with one end of two aluminum alloy corner codes through two first bolts, the other end of the two aluminum alloy corner codes is fixedly connected with the two ends of the bottom of the first mounting plate through second bolts, the other end of the other two aluminum alloy corner codes is fixedly connected with the two ends of the bottom of the second mounting plate through third bolts, and the top of the first mounting plate is fixedly installed with a first electric hydraulic cylinder.

[0004] The above-mentioned patent can effectively remove the frost on the surface of the automobile evaporator body through the first electric hydraulic cylinder and the first defrosting device, and can effectively remove the frost on the top of the automobile evaporator body through the second electric hydraulic cylinder and the third defrosting brush, thereby improving the working efficiency of the automobile evaporator, but long-distance transport vehicles usually need to operate for a long time, and the air conditioning system also needs to work continuously. During long-distance driving, especially when passing through different climate zones, the frost on the surface of the evaporator is relatively thick, so that the defrosting effect of the defrosting brush is poor, and the frost is easily tightly adhered to the surface of the evaporator, thereby reducing the defrosting effect and causing the air conditioning refrigeration performance to decrease. Therefore, an automobile evaporator with defrosting device is proposed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides an automobile evaporator with defrosting device, which aims to improve the problem of "when the frost on the surface of the evaporator is relatively thick, the defrosting effect of the defrosting brush is poor, and the frost is easily tightly adhered to the surface of the evaporator" in the prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: A car evaporimeter with defrosting device, including evaporimeter shell, the top of evaporimeter shell is fixedly connected with support, the front side of support is provided with drive mechanism, the inside of support is provided with defrosting mechanism, defrosting mechanism includes fixed link, the left and right ends of fixed link are fixedly connected with shift block, the inside of support is provided with recess, shift block is slidably installed in the inside of recess, the outer wall of fixed link is rotatably connected with roller, the outer wall of roller is fixedly connected with scraper, the right side of roller is provided with linkage mechanism, the right side of fixed link is provided with heating mechanism.

[0007] As further description of the above technical scheme:

[0008] The drive mechanism includes a stepper motor, the stepper motor is fixedly installed on the right side of the support, the output shaft rear side of the stepper motor is fixedly connected with the reciprocating screw rod, and the shift block is installed on the outer wall of the reciprocating screw rod.

[0009] As further description of the above technical scheme:

[0010] The number of scrapers is set to multiple, and multiple scrapers are arranged on the circumferential surface of the roller in a ring shape and at equal angles.

[0011] As further description of the above technical scheme:

[0012] The linkage mechanism includes a gear and a rack, the gear is fixedly installed on the right side of the roller, the rack is fixedly installed on the inner wall top of the evaporimeter shell, and the gear and the rack are engaged.

[0013] As further description of the above technical scheme:

[0014] The heating mechanism includes a shell, a heating pipe is fixedly connected in the shell, an air inlet pipe is threadedly connected to the right side of the shell, and a gas pump is arranged on the top of the shell.

[0015] As further description of the above technical scheme:

[0016] The inside of the fixed link is provided with a channel, the inside of the roller is provided with a cavity, and the surface of the roller is provided with a through hole.

[0017] As further description of the above technical scheme:

[0018] The number of through holes is set to multiple, and multiple through holes are arranged on the surface of the roller in a ring shape and at equal angles.

[0019] As further description of the above technical scheme:

[0020] The central axis of the fixed rod coincides with the central axis of the roller, and the fixed rod is connected with the roller through a sealing bearing.

[0021] The utility model has the advantages of the following:

[0022] 1、The utility model discloses a step motor, reciprocating screw rod, fixed rod, shift block, recess, roller, scraper, gear, rack cooperate, make the roller linear displacement also rotate, and the rotation direction of the contact point of the roller and evaporator shell is same with the advancing direction of the roller, thereby improve the effect that the roller drives multiple scraper rotation and removes frost.

[0023] 2、The utility model discloses a power supply of starting air pump and heating pipe makes the air heated from the through -hole to the outside of the roller, and the frost on the surface of evaporator shell is thawed, makes the frost more easily be scraped down from the surface of evaporator shell on the scraper of the roller, when the frost is thicker, also has better defrosting effect. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the left view schematic diagram of the whole three -dimensional structure in the utility model;

[0025] Figure 2 It is the right view schematic diagram of the whole three -dimensional structure in the utility model;

[0026] Figure 3 It is the three -dimensional structure cross -section schematic diagram of defrosting mechanism and linkage mechanism in the utility model;

[0027] Figure 4 It is the three -dimensional explosion structure cross -section schematic diagram of defrosting mechanism, linkage mechanism and heating mechanism in the utility model;

[0028] Figure 5 It is the three -dimensional structure cross -section schematic diagram of fixed rod, roller and scraper in the utility model.

[0029] LEGEND:

[0030] 1, evaporator shell;2, support;3, step motor;4, reciprocating screw rod;5, fixed rod;6, shift block;7, recess;8, roller;9, scraper;10, gear;11, rack;12, shell;13, heating pipe;14, air inlet pipe;15, air pump;16, passageway;17, cavity;18, through -hole. DETAILED DESCRIPTION

[0031] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0032] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 1 、 Figure 2 The present application provides an embodiment: a car evaporator with defrosting device, including evaporator shell 1, the top of evaporator shell 1 is fixedly connected with support 2, support 2 is set to square, the size of support 2 and the size of evaporator shell 1 are matched, the front side of support 2 is provided with driving mechanism.

[0033] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 2 、 Figure 3 Driving mechanism includes stepping motor 3, stepping motor 3 is fixedly installed on the right side of support 2, stepping motor 3 can accurately control the rotation angle of its output shaft, it is convenient to adjust the rotation speed and rotation angle of its output shaft, and then improve the accuracy of control, the output shaft rear side of stepping motor 3 is fixedly connected with reciprocating lead screw 4, one end of reciprocating lead screw 4 away from stepping motor 3 is rotatably installed on the inner wall of groove 7, the stability of reciprocating lead screw 4 rotation is improved, shift block 6 is installed on the outer wall of reciprocating lead screw 4, when reciprocating lead screw 4 rotates, shift block 6 moves linearly in the axial direction of reciprocating lead screw 4.

[0034] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 2 - Figure 4 The inside of support 2 is provided with defrosting mechanism, defrosting mechanism includes fixed rod 5 arranged in horizontal state, the left and right ends of fixed rod 5 are fixedly connected with shift block 6 with rectangular cross section, the inside of support 2 is provided with groove 7 matched with shift block 6, shift block 6 is slidably installed in the inside of groove 7, the sliding direction of shift block 6 is forward and backward sliding, the outer wall of fixed rod 5 is rotatably connected with roller 8, the outer wall of roller 8 is fixedly connected with scraper 9 for defrosting the surface of car evaporator, the number of scraper 9 is set to multiple, multiple scraper 9 is arranged on the circumferential surface of roller 8 in ring shape and equal angle interval, defrosting is carried out by continuously rotating multiple scraper 9 driven by roller 8 rotation.

[0035] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 2 、 Figure 3A linkage mechanism is provided on the right side of the roller 8. The linkage mechanism includes a gear 10 and a rack 11. The gear 10 is fixedly installed on the right side of the roller 8, and the rack 11 is fixedly installed on the top of the inner wall of the evaporator shell 1. The gear 10 and the rack 11 mesh. Through the cooperation of the gear 10 and the rack 11, the moving block 6 drives the roller 8 to move back and forth in a linear motion and also rotates. The rotation direction of the roller 8 is the same as the forward direction of the roller 8.

[0036] Reference Figure 2 , Figure 4 A heating mechanism is provided on the right side of the fixing rod 5. The heating mechanism includes a housing 12, and a heating tube 13 is fixedly connected inside the housing 12. The heating tube 13 uses electrical energy as its energy source and can heat the inside of the housing 12, so that the air entering the housing 12 from the air inlet pipe 14 is heated, which facilitates the subsequent heating and defrosting of the evaporator shell 1. As is the prior art, the heating tube 13 is set in a serpentine shape to increase the contact area with the air, improve the efficiency of heat exchange, and improve the heating effect of the air. The right side of the housing 12 is threadedly connected to the air inlet pipe 14. The air inlet pipe 14 is equipped with a dustproof mesh cover to filter dust and impurities in the air. An air pump 15 is provided on the top of the housing 12 to provide power to draw in outside air from the air inlet pipe 14 and send it into the interior of the fixing rod 5.

[0037] Reference Figure 3 - Figure 5 The fixed rod 5 has a channel 16 inside, and the roller 8 has a cavity 17 inside. The inside of the channel 16 is connected to the inside of the cavity 17. The surface of the roller 8 has a through hole 18. The inside of the cavity 17 is connected to the outside of the roller 8 through the through hole 18. The number of through holes 18 is set to multiple. The multiple through holes 18 are arranged in a ring at equal angles on the surface of the roller 8. The diameter of the through hole 18 is 0.1mm to 2mm. The through hole 18 can be a round hole or a square hole. The number of through holes 18 can be set to multiple, and the number of through holes 18 can be set as needed.

[0038] Working principle: When in use, the power supply of the stepper motor 3 is turned on, and the stepper motor 3 works to make the reciprocating screw 4 rotate, which in turn makes the moving block 6 move linearly back and forth in the axial direction of the reciprocating screw 4. The displacement of the moving block 6 drives the roller 8 on the surface of the fixed rod 5 to move back and forth linearly back and forth. Through the cooperation of the gear 10 and the rack 11, the roller 8 will also rotate when it moves linearly. Moreover, the rotation direction of the contact point between the roller 8 and the evaporator shell 1 is the same as the forward direction of the roller 8, thereby improving the effect of removing frost when the roller 8 drives the multiple scrapers 9 to rotate.

[0039] When the frost is thicker, by starting the air pump 15 and the power supply of the heating pipe 13, the air pump 15 works to suck the air from the air inlet pipe 14 into the inside of the shell 12, then is heated by the heating pipe 13 to become hot air, then enters the channel 16 and the cavity 17 in turn, and finally is sprayed from the through hole 18 to the outside of the roller 8, which is convenient for thawing the frost on the surface of the evaporator shell 1, so that the frost is more easily scraped from the surface of the evaporator shell 1 by the scraper 9 on the surface of the roller 8, and has better defrosting effect when the frost is thicker.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A car evaporator having a defrosting device, comprising an evaporator housing (1), characterized in that: The top of the evaporator shell (1) is fixedly connected with a support (2), the front side of the support (2) is provided with a driving mechanism, the inside of the support (2) is provided with a defrosting mechanism, the defrosting mechanism comprises a fixed rod (5), the left and right ends of the fixed rod (5) are fixedly connected with a moving block (6), the inside of the support (2) is provided with a groove (7), the moving block (6) is slidingly installed in the inside of the groove (7), a roller (8) is rotatably connected to the outer wall of the fixed rod (5), a scraper (9) is fixedly connected to the outer wall of the roller (8), the right side of the roller (8) is provided with a linkage mechanism, the right side of the fixed rod (5) is provided with a heating mechanism.

2. An automotive evaporator having a defrosting device according to claim 1, wherein: The driving mechanism comprises a stepping motor (3), the stepping motor (3) is fixedly installed on the right side of the support (2), the output shaft rear side of the stepping motor (3) is fixedly connected with a reciprocating screw (4), the moving block (6) is installed on the outer wall of the reciprocating screw (4).

3. The automobile evaporator with defrosting device according to claim 1, characterized in that: The number of the scrapers (9) is set to be multiple, multiple scrapers (9) are arranged on the circumferential surface of the roller (8) in a ring shape at equal angles.

4. The automobile evaporator with defrosting device according to claim 1, characterized in that: The linkage mechanism comprises a gear (10) and a rack (11), the gear (10) is fixedly installed on the right side of the roller (8), the rack (11) is fixedly installed on the inner wall top of the evaporator shell (1), the gear (10) and the rack (11) are engaged.

5. The automobile evaporator with defrosting device according to claim 1, characterized in that: The heating mechanism comprises a shell (12), the inside of the shell (12) is fixedly connected with a heating pipe (13), the right side of the shell (12) is threadedly connected with an air inlet pipe (14), the top of the shell (12) is provided with an air pump (15).

6. The automobile evaporator having a defrosting device according to claim 1, wherein: The inside of the fixed rod (5) is provided with a channel (16), the inside of the roller (8) is provided with a cavity (17), the surface of the roller (8) is provided with a through hole (18).

7. An automotive evaporator having a defrosting device according to claim 6, wherein: The number of the through holes (18) is set to be multiple, multiple through holes (18) are arranged on the surface of the roller (8) in a ring shape at equal angles.

8. An automotive evaporator having a defrosting device according to claim 7, characterized in that: The central axis of the fixed rod (5) and the central axis of the roller (8) coincide, the fixed rod (5) is connected with the roller (8) through a sealing bearing.

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