A vehicle air conditioner evaporator convenient to install
The design of the limiting component enables convenient installation and removal of the air conditioner evaporator, solving the problems of time-consuming, labor-intensive, and easily damaged screws in the traditional disassembly process, thus improving maintenance efficiency and air quality.
Patent Information
- Application Number
- CN202521643910.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-16
- Estimated Expiration
- 2035-08-04
AI Technical Summary
The traditional process of disassembling an automotive air conditioning evaporator requires the use of specialized tools to unscrew multiple screws one by one, which is time-consuming, laborious, and prone to problems such as lost screws or stripped threads, increasing the difficulty and time cost of disassembly.
The device employs a limiting assembly, including a rotating threaded rod sleeve, a sliding seat, and a positioning rod groove. It slides precisely into the mounting seat through triple guidance, and the rotating threaded rod sleeve is used to engage and disengage the limiting block, simplifying the disassembly process.
It eliminates the need to remove multiple screws, avoiding screw loss and stripping issues, significantly reducing the workload of maintenance personnel, and is especially convenient for regular disassembly and cleaning, ensuring air quality inside the vehicle.
Smart Images

Figure CN224365108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical engineering technology, and in particular to an easy-to-install automotive air conditioning evaporator. Background Technology
[0002] With the rapid development of the automotive industry and the increasing demands of people for driving comfort, automotive air conditioning systems have become an indispensable part of modern automobiles. The main function of automotive air conditioning is to regulate the air inside the vehicle, ensuring that the environment inside the vehicle meets the standards of human comfort in terms of temperature, humidity, airflow, and cleanliness. At the same time, it can also effectively prevent or remove fog, frost, and ice on the glass, providing a healthy and comfortable riding environment for passengers, creating good working conditions for the driver, and thus ensuring driving safety.
[0003] As one of the key components of the automotive air conditioning system, the evaporator plays an extremely important role in the entire refrigeration cycle. Its working principle is based on heat exchange. When the automotive air conditioning refrigeration system is running, high-pressure liquid refrigerant enters the evaporator through the expansion valve. Under the action of the expansion valve, the liquid refrigerant is atomized into tiny droplets, which then rapidly transform into a gaseous state in the low-pressure environment inside the evaporator. This phase change process is accompanied by a large amount of heat absorption, causing the evaporator's own temperature to drop sharply.
[0004] In actual use, the evaporator is in a humid and well-ventilated environment for a long time, which makes it very easy for a large number of bacteria, mold and other microorganisms to grow. These microorganisms not only produce odors, pollute the air inside the car and affect the health of the driver and passengers, but may also reduce the heat exchange efficiency of the evaporator, thereby reducing the cooling performance of the car's air conditioning system.
[0005] Traditional automotive air conditioning evaporators mostly use a relatively complex and cumbersome fixing method, commonly using multiple screws to fasten the evaporator core to the inside of the outer casing. While this fixing method ensures the stability of the evaporator to a certain extent during vehicle operation, it brings great inconvenience when the evaporator needs to be disassembled for maintenance. When disassembling the evaporator, repair personnel need to use professional tools to unscrew multiple screws one by one. This process is not only time-consuming and laborious, but also prone to problems such as missing screws or stripped threads due to the large number of screws, further increasing the difficulty and time cost of disassembly. Utility Model Content
[0006] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an easy-to-install automotive air conditioning evaporator. This solves the problem that when maintenance personnel disassemble the evaporator, they need to use professional tools to unscrew multiple screws one by one. This process is not only time-consuming and laborious, but also prone to problems such as screw loss and stripping due to the large number of screws, which further increases the difficulty of disassembly and time costs.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-install vehicle air conditioning evaporator, comprising a mounting base, an air conditioning evaporator body, an inlet pipe and an outlet pipe, wherein a limiting component is provided on the mounting base;
[0008] The limiting assembly includes two rotating threaded rod sleeves and two sliding seats. The two sliding seats are fixedly connected to the outer walls of the rear ends of the air conditioner evaporator body on both sides. The two rotating threaded rod sleeves are rotatably connected to the outer walls of the mounting base on both sides. The outer walls of both sides of the mounting base are provided with sliding seat grooves, and the inner walls of the upper and lower sides of the two sliding seats are provided with T-shaped block grooves.
[0009] The mounting base has positioning rod grooves on the outer walls of its four corners, and first limiting block grooves on the inner walls of the two sliding seat grooves. Limiting blocks are slidably connected inside the two first limiting block grooves. Second limiting block grooves are provided on the outer walls of the two sliding seats on the side closest to the first limiting block grooves. Sliding connecting rods are slidably connected to the outer walls on both sides of the mounting base. Rotating threaded rods are provided inside the two first limiting block grooves.
[0010] Preferably, the outer walls of the two sliding seats are slidably connected to the interior of the corresponding sliding seat groove;
[0011] The outer walls of the T-shaped blocks on the upper and lower sides of the two sliding seats are slidably connected to the interior of the corresponding T-shaped block grooves.
[0012] Preferably, the outer walls of the positioning rods at the four corners of the air conditioner evaporator body are slidably connected to the interior of the corresponding positioning rod grooves;
[0013] In this configuration, the ends of the two limiting blocks near the second limiting block grooves both slide into the interior of the sliding seat groove and are respectively slidably connected to the interior of the corresponding second limiting block grooves.
[0014] Preferably, the four sliding links are arranged in groups of two;
[0015] In this configuration, the ends of the two sets of sliding connecting rods near the limiting blocks extend into the interior of the first limiting block groove and are respectively fixedly connected to the outer wall of the corresponding limiting blocks.
[0016] Preferably, the ends of the two rotating threaded rods near the limiting block are respectively fixedly connected to the outer wall of the corresponding limiting block.
[0017] Preferably, the ends of both rotating threaded rod sleeves near the limiting block extend rotatably into the interior of the first limiting block groove.
[0018] Preferably, the ends of the two rotating threaded rods away from the limiting block are respectively connected to the internal threads of the corresponding rotating threaded rod sleeves.
[0019] Preferably, the mounting base is provided with mounting plates on both the upper and lower outer walls;
[0020] The water inlet pipe is fixedly installed on the outer wall of one side of the upper end of the air conditioner evaporator body.
[0021] Preferably, the water outlet pipe is fixedly installed on the outer wall of one side of the lower end of the air conditioner evaporator body;
[0022] Both the inlet and outlet water pipes are connected to the internal pipes of the air conditioner evaporator.
[0023] Preferably, the pipes inside the air conditioner evaporator body are arranged in an "S" shape.
[0024] Compared with the prior art, the beneficial effects of this utility model are:
[0025] 1. This easy-to-install automotive air conditioning evaporator utilizes a triple-guided system in its limiting assembly, consisting of a positioning rod and positioning rod groove, a sliding seat and sliding seat groove, and a T-block and T-block groove. This allows the evaporator body to slide precisely into the mounting base. Rotating the threaded sleeve pushes the limiting block into the second limiting block groove, locking it in place. For disassembly, rotating the threaded sleeve in the opposite direction disengages the limiting block from the second limiting block groove, allowing the evaporator body to be pulled out directly. The entire process eliminates the need to remove multiple screws, avoiding issues such as lost screws or stripped threads. This significantly reduces the workload for maintenance personnel and is especially convenient for periodically disassembling the air conditioning evaporator body for cleaning, ensuring better air quality inside the vehicle. Attached Figure Description
[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0028] Figure 2 This is a schematic diagram of the external structure of the air conditioner evaporator body of this utility model;
[0029] Figure 3 This is a schematic diagram of the external structure of the rotating threaded rod sleeve of this utility model;
[0030] Figure 4 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle.
[0031] Reference numerals in the attached drawings: 1. Mounting base; 2. Sliding connecting rod; 3. Rotating threaded rod sleeve; 4. Air conditioner evaporator body; 5. Water inlet pipe; 6. Water outlet pipe; 7. Sliding seat groove; 8. T-block groove; 9. Positioning rod groove; 10. Limiting block; 11. First limiting block groove; 12. Sliding base; 13. Second limiting block groove; 14. Rotating threaded rod. Detailed Implementation
[0032] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0036] Please see Figures 1-4 This utility model provides a technical solution: an easy-to-install vehicle air conditioner evaporator, including a mounting base 1, an air conditioner evaporator body 4, a water inlet pipe 5, and a water outlet pipe 6;
[0037] A limit component is provided on mounting base 1;
[0038] The limiting assembly includes two rotating threaded rod sleeves 3 and two sliding seats 12. The two sliding seats 12 are fixedly connected to the outer walls of the rear ends of the air conditioner evaporator body 4 on both sides. The two rotating threaded rod sleeves 3 are rotatably connected to the outer walls of the mounting base 1 on both sides. The outer walls of both sides of the mounting base 1 are provided with sliding seat grooves 7. The outer walls of the two sliding seats 12 are slidably connected to the interior of the corresponding sliding seat grooves 7. The inner walls of the upper and lower sides of the two sliding seats 12 are provided with T-shaped block grooves 8. The outer walls of the upper and lower sides of the two sliding seats 12 are slidably connected to the interior of the corresponding T-shaped block grooves 8. The outer walls of the four corners of the mounting base 1 are provided with positioning rod grooves 9. The outer walls of the positioning rods at the four corners of the air conditioner evaporator body 4 are slidably connected to the interior of the corresponding positioning rod grooves 9. The inner walls of the two sliding seat grooves 7 are provided with first limiting block grooves 11. The interiors of the two first limiting block grooves 11 are slidably connected with limiting blocks 10. The two sliding seats 12 are close to the first limiting block grooves 11. Each of the two limiting block grooves 11 has a second limiting block groove 13 on one side of its outer wall. The ends of the two limiting blocks 10 near the second limiting block groove 13 slide into the sliding seat groove 7 and are slidably connected to the interior of the corresponding second limiting block groove 13. The two sides of the mounting base 1 are slidably connected to sliding connecting rods 2. The four sliding connecting rods 2 are in groups of two. The ends of the two groups of sliding connecting rods 2 near the limiting block 10 slide into the interior of the first limiting block groove 11 and are fixedly connected to the outer wall of the corresponding limiting block 10. The interior of each of the two first limiting block grooves 11 is provided with a rotating threaded rod 14. The ends of the two rotating threaded rods 14 near the limiting block 10 are fixedly connected to the outer wall of the corresponding limiting block 10. The ends of the two rotating threaded rod sleeves 3 near the limiting block 10 rotatably extend into the interior of the first limiting block groove 11. The ends of the two rotating threaded rods 14 away from the limiting block 10 are threadedly connected to the interior of the corresponding rotating threaded rod sleeve 3.
[0039] The mounting base 1 has mounting plates on both the upper and lower outer walls. The water inlet pipe 5 is fixedly installed on the upper side outer wall of the air conditioner evaporator body 4, and the water outlet pipe 6 is fixedly installed on the lower side outer wall of the air conditioner evaporator body 4. Both the water inlet pipe 5 and the water outlet pipe 6 are connected to the pipes inside the air conditioner evaporator body 4. The pipes inside the air conditioner evaporator body 4 are arranged in an "S" shape.
[0040] Furthermore, when using this device, first align the four corner positioning rods of the air conditioner evaporator body 4 with the positioning rod grooves 9 at the four corners of the mounting base 1, and push the air conditioner evaporator body 4 along the groove direction. At this time, the sliding seats 12 at the rear ends on both sides of the air conditioner evaporator body 4 move synchronously with the body, and their outer walls slide along the sliding seat grooves 7 on both sides of the mounting base 1. At the same time, the T-shaped blocks on the upper and lower sides of the sliding seats 12 slide along the corresponding T-shaped block grooves 8. The triple guiding cooperation of the positioning rods and positioning rod grooves 9, the sliding seats 12 and sliding seat grooves 7, and the T-shaped blocks and T-shaped block grooves 8 ensures that the air conditioner evaporator body 4 does not deviate during installation and is accurately aligned with the installation position. Then, when the air conditioner evaporator body 4 slides to the preset installation position (the inlet pipe 5 and outlet pipe 6 are connected to the vehicle pipeline), the second limiting block groove 13 on one side of the sliding seat 12 is exactly aligned with the first limiting block groove 11 on the inner wall of the sliding seat groove 7. At this time, rotate the rotating threaded rod sleeves 3 on both sides of the mounting base 1, and they are aligned with the first limiting block groove 11. The rotating threaded rod 14 is threaded and moves towards the sliding seat 12, thereby pushing the limiting block 10 from the first limiting block groove 11 into the second limiting block groove 13. The engagement of the limiting block 10 achieves a rigid lock between the sliding seat 12 and the mounting seat 1, thus firmly fixing the air conditioner evaporator body 4 on the mounting seat 1. The sliding connecting rod 2 slides synchronously with the limiting block 10, assisting in guiding the movement of the limiting block 10 and ensuring accurate locking. When disassembly is required, the rotating threaded rod sleeve 3 is rotated in the opposite direction, causing the rotating threaded rod 14 and the limiting block 10 to exit the second limiting block groove 13, releasing the lock. Then, the air conditioner evaporator body 4 is pulled in the opposite direction along the positioning rod groove 9 to remove it from the mounting seat 1. The whole process does not require complicated tools and is easy to operate. After installation and fixation, the refrigerant enters the "S"-shaped pipe inside the air conditioner evaporator body 4 through the water inlet pipe 5, exchanges heat with the air inside the vehicle, and achieves a cooling effect. The refrigerant after heat exchange is discharged from the water outlet pipe 6 to complete the circulation.
[0041] The air conditioner evaporator body 4 is precisely slid into the mounting base 1 by using the triple guidance of the positioning rod and positioning rod groove 9, the sliding seat 12 and sliding seat groove 7, and the T-block and T-block groove 8 in the limiting assembly. Rotating the threaded rod sleeve 3 pushes the limiting block 10 into the second limiting block groove 13 to complete the locking. When disassembling, rotating the threaded rod sleeve 3 in the opposite direction will disengage the limiting block 10 from the second limiting block groove 13, and the evaporator body can be directly pulled out. The entire process does not require the removal of multiple screws, avoiding problems such as lost screws and stripped threads, greatly reducing the labor intensity of maintenance personnel. It is especially convenient for regularly disassembling the air conditioner evaporator body 4 for cleaning, ensuring the air quality inside the vehicle.
[0042] Structural Description: Mounting base 1: Serves as the mounting base for the evaporator. It has sliding seat grooves 7 and first limiting block grooves 11 on both sides, and positioning rod grooves 9 at the four corners. Mounting plates are provided on the upper and lower outer walls for fixing it to the vehicle. It is the carrier for bearing and connecting various components.
[0043] Air conditioner evaporator body 4: It has an "S" shaped pipe inside (to increase the heat exchange area), a sliding seat 12 fixed at both rear ends, and positioning rods at the four corners to realize heat exchange. It is the core component of air conditioner refrigeration.
[0044] Water inlet pipe 5: Fixed on one side of the upper end of the air conditioner evaporator body 4, connected to the internal pipe, used for inputting refrigerant;
[0045] Water outlet pipe 6: Fixed to one side of the lower end of the air conditioner evaporator body 4, connected to the internal pipe, used to discharge the refrigerant after heat exchange, forming a refrigeration circulation path;
[0046] Sliding seat 12: It is fixed on both rear ends of the air conditioner evaporator body 4. The outer wall is slidably connected to the sliding seat groove 7 of the mounting seat 1. T-shaped blocks are provided on the upper and lower sides to cooperate with the T-shaped block groove 8, which is used to drive the evaporator body to slide accurately, and at the same time provides a connection point for locking the limit block.
[0047] Rotating threaded rod sleeve 3: It is rotatably connected to the outer walls of both sides of the mounting base 1, and is internally threaded to the rotating threaded rod 14. It drives the limit block 10 to move by rotation and is the power input component of the limit assembly.
[0048] Limiting block 10: It is slidably connected in the first limiting block groove 11, and one end can slide into the second limiting block groove 13 of the sliding seat 12. By engaging, it restricts the movement of the sliding seat 12 and realizes the fixation of the evaporator body.
[0049] Rotating threaded rod 14: One end is fixed to the limiting block 10, and the other end is threadedly connected to the rotating threaded rod sleeve 3, which converts the rotational motion of the rotating threaded rod sleeve 3 into linear motion, thereby driving the limiting block 10 to extend and retract.
[0050] Sliding link 2: Two sets (two in each set) are fixed to the limit blocks 10 on both sides respectively, slide through the outer wall of the mounting base 1, and the auxiliary limit block 10 moves in a straight line to prevent it from deviating and improve locking stability;
[0051] Positioning rod groove 9: It is opened at the four corners of the mounting base 1 and slides with the positioning rod of the air conditioner evaporator body 4 to provide precise guidance for the installation of the evaporator body and ensure accurate installation position;
[0052] T-shaped block groove 8: It is opened on the inner wall of the upper and lower sides of the sliding seat 12, and cooperates with the T-shaped block of the sliding seat to further enhance the smoothness of the sliding of the sliding seat 12 and prevent the evaporator body from shaking during installation;
[0053] First limiting block groove 11 and second limiting block groove 13: First limiting block groove 11 provides sliding space for limiting block 10, and second limiting block groove 13 is opened on one side of sliding seat 12 to accommodate limiting block 10. The two work together to achieve the locking function.
[0054] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An easy-to-install vehicle air conditioning evaporator, comprising a mounting base (1), an air conditioning evaporator body (4), an inlet pipe (5), and an outlet pipe (6), characterized in that: A limit component is provided on the mounting base (1); The limiting assembly includes two rotating threaded rod sleeves (3) and two sliding seats (12). The two sliding seats (12) are fixedly connected to the outer walls of the rear ends of the air conditioner evaporator body (4) on both sides. The two rotating threaded rod sleeves (3) are rotatably connected to the outer walls of the mounting base (1) on both sides. The outer walls of the mounting base (1) on both sides are provided with sliding seat grooves (7). The inner walls of the upper and lower sides of the two sliding seats (12) are provided with T-shaped block grooves (8). The mounting base (1) has positioning rod grooves (9) on the outer walls of its four corners, and the inner walls of the two sliding seat grooves (7) have first limiting block grooves (11). The two first limiting block grooves (11) are slidably connected to limiting blocks (10). The outer walls of the two sliding seats (12) near the first limiting block grooves (11) have second limiting block grooves (13). The outer walls of both sides of the mounting base (1) are slidably connected to sliding connecting rods (2). The two first limiting block grooves (11) are provided with rotating threaded rods (14).
2. The vehicle air conditioning evaporator that is easy to install according to claim 1, characterized in that: The outer walls of the two sliding seats (12) are respectively slidably connected to the interior of the corresponding sliding seat groove (7); Among them, the outer walls of the T-shaped blocks on the upper and lower sides of the two sliding seats (12) are respectively slidably connected to the interior of the corresponding T-shaped block groove (8).
3. The vehicle air conditioning evaporator that is easy to install according to claim 1, characterized in that: The outer walls of the positioning rods at the four corners of the air conditioner evaporator body (4) are slidably connected to the interior of the corresponding positioning rod grooves (9); Among them, the two limiting blocks (10) extend into the interior of the sliding seat groove (7) at the end near the second limiting block groove (13) and are respectively slidably connected to the interior of the corresponding second limiting block groove (13).
4. The vehicle air conditioning evaporator that is easy to install according to claim 1, characterized in that: The four sliding links (2) are arranged in pairs; Among them, the ends of the two sets of sliding links (2) near the limiting block (10) are slidably extended into the interior of the first limiting block groove (11) and are respectively fixedly connected to the outer wall of the corresponding limiting block (10).
5. The vehicle air conditioning evaporator that is easy to install according to claim 1, characterized in that: The two rotating threaded rods (14) are fixedly connected to the outer wall of the corresponding limit block (10) at one end near the limit block (10).
6. The vehicle air conditioning evaporator that is easy to install according to claim 1, characterized in that: Both of the two rotating threaded rod sleeves (3) extend into the interior of the first limiting block groove (11) at the end near the limiting block (10).
7. The vehicle air conditioning evaporator that is easy to install according to claim 1, characterized in that: The ends of the two rotating threaded rods (14) away from the limiting block (10) are respectively connected to the internal threads of the corresponding rotating threaded rod sleeve (3).
8. The vehicle air conditioning evaporator that is easy to install according to claim 1, characterized in that: The mounting base (1) is provided with mounting plates on both the upper and lower outer walls; The water inlet pipe (5) is fixedly installed on the outer wall of the upper side of the air conditioner evaporator body (4).
9. The vehicle air conditioning evaporator that is easy to install according to claim 1, characterized in that: The water outlet pipe (6) is fixedly installed on the outer wall of the lower end of the air conditioner evaporator body (4); The inlet pipe (5) and outlet pipe (6) are both connected to the pipes inside the air conditioner evaporator body (4).
10. The vehicle air conditioning evaporator that is easy to install according to claim 1, characterized in that: The pipes inside the air conditioner evaporator body (4) are arranged in an "S" shape.