A coil assembly for an evaporator
By designing a combination of upper support base, lower support base, bolts, slots, and elastic rods, the problem of unstable installation caused by loose bolts was solved, achieving stable connection and improved sealing of the coil assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU FUYUANDA THERMAL TECH CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-07-03
Smart Images

Figure CN224454979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coil assembly technology, specifically to a coil assembly for an evaporator. Background Technology
[0002] Coil assemblies are a common evaporator design used in air conditioning systems, refrigeration systems, and other heat exchange applications. Their main feature is the use of coils to increase the surface area for heat exchange, thereby improving evaporation efficiency.
[0003] The prior art provides a coil assembly for an evaporator (publication number: CN218583475U). This utility model discloses a coil assembly for a forced-cooling evaporator, including an evaporator housing and a coil assembly installed inside the evaporator housing. The top of the evaporator housing has concave grooves on both sides, and sliding blocks are installed inside each of the two concave grooves. Connecting blocks that can slide inside the sliding grooves are installed on one side of each of the two sliding blocks. This utility model provides concave grooves, sliding blocks, and a sliding groove. When it is necessary to install or disassemble the coil assembly, the connecting blocks installed on both sides of the telescopic sleeve and the sliding blocks at one end of the connecting blocks can slide along the sliding grooves into the concave grooves through the concave grooves on both sides of the top of the evaporator housing. This makes installation convenient, and when disassembly is required, the coil assembly can be directly removed, saving labor and improving installation efficiency.
[0004] However, traditional evaporator coil assemblies still have the following drawbacks:
[0005] The coil assembly is usually installed and fixed by bolts and other components. After long-term use, the bolts may loosen, resulting in unstable installation of the coil assembly. Summary of the Invention
[0006] The purpose of this utility model is to provide a coil assembly for an evaporator. This utility model uses components such as an upper support base, a lower support base, a slot, and an elastic rod to work together. The upper and lower support bases can be locked together with bolts to install the coil assembly. The elastic rod is engaged in the slot in the upper support base to prevent the bolts from loosening and causing the connection between the upper and lower support bases to become loose, thereby solving the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an evaporator coil assembly, including a mounting base and a coil component. The coil component is disposed on the front side of the mounting base, and a support rod is fixedly connected to the front side of the mounting base. A lower support base is fixedly connected to the upper end of the support rod, and an upper support base is in contact with the upper end of the lower support base. A bolt is rotatably connected inside the upper support base, and the bolt and the lower support base are connected by threads. A slot is provided on the side of the upper support base, and an elastic rod is slidably connected inside the slot. The elastic rod is fixedly connected to the mounting base.
[0008] Preferably, the coil is connected to a connecting pipe via threads, and the connecting pipe is provided with a sealing mechanism to improve the sealing performance of the connection.
[0009] Preferably, the sealing mechanism includes a pressure ring, a sealing ring, a groove, a locking pin, a mounting sleeve, a guide rod, and a spring. The pressure ring is fixedly connected to the inner wall of the connecting pipe, and the sealing ring is fixedly connected to the pressure ring. The connecting pipe has a groove, and the locking pin is slidably connected in the groove. The mounting sleeve is fixedly connected to the outer side of the coil, and the guide rod is fixedly connected to the bottom inner end of the mounting sleeve. A spring is sleeved on the outer side of the guide rod.
[0010] Preferably, one end of the spring is fixedly connected to the inner bottom end of the mounting sleeve, and the other end of the spring is fixedly connected to the locking pin.
[0011] Preferably, the sealing ring is slidably connected to the inner wall of the connecting pipe, and the sealing ring is in contact with the coil fitting.
[0012] Preferably, there are several grooves, and the grooves are arranged in a ring array on the connecting pipe.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model incorporates components such as an upper support base, a lower support base, bolts, a locking groove, and a flexible rod. By placing the coil fitting between the lower and upper support bases and locking them together with bolts, the coil fitting can be installed. The flexible rod engages with a locking groove in the upper support base, further strengthening the connection between the upper and lower support bases and preventing the connection from becoming unstable due to loose bolts. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a partial structural schematic diagram of the present invention;
[0017] Figure 3 For practical purposes Figure 2 Enlarged view of area A in the image;
[0018] Figure 4 This is a schematic diagram of the connection mechanism structure of this utility model;
[0019] Figure 5 For practical purposes Figure 4 Enlarged view of area B in the image.
[0020] In the diagram: 1. Mounting base; 2. Coil fitting; 3. Support rod; 4. Lower support base; 5. Upper support base; 6. Bolt; 7. Slot; 8. Elastic rod; 9. Connecting pipe; 10. Sealing mechanism; 101. Pressure ring; 102. Sealing ring; 103. Groove; 104. Locking pin; 105. Mounting sleeve; 106. Guide rod; 107. Spring. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-5 This utility model provides a technical solution: an evaporator coil assembly, including a mounting base 1 and a coil component 2. The coil component 2 is provided on the front side of the mounting base 1. A support rod 3 is fixedly connected to the front side of the mounting base 1. A lower support seat 4 is fixedly connected to the upper end of the support rod 3. An upper support seat 5 is in contact with the upper end of the lower support seat 4. A bolt 6 is rotatably connected inside the upper support seat 5. The bolt 6 and the lower support seat 4 are connected by threads. A slot 7 is provided on the side of the upper support seat 5. An elastic rod 8 is slidably connected inside the slot 7. The elastic rod 8 is fixedly connected to the mounting base 1.
[0023] This utility model uses the above-mentioned components in conjunction. The threaded movement between the bolt 6 and the lower support 4 brings the upper support 5 and the lower support 4 closer together and locks the coil 2. Then, the elastic rod 8 can be inserted into the quick-release groove 7 between the upper support 5, which further strengthens the connection between the upper support 5 and the lower support 4 and prevents the coil 2 from falling off due to the loosening of the bolt 6.
[0024] The coil fitting 2 is connected to a connecting pipe 9 by threads, and the connecting pipe 9 is provided with a sealing mechanism 10 to improve the sealing of the connection.
[0025] The connecting pipe 9 and the coil fitting 2 are connected, and the required fluid is injected into the coil fitting 2.
[0026] The sealing mechanism 10 includes a pressure ring 101, a sealing ring 102, a groove 103, a locking pin 104, a mounting sleeve 105, a guide rod 106, and a spring 107. The pressure ring 101 is fixedly connected to the inner wall of the connecting pipe 9, and the sealing ring 102 is fixedly connected to the pressure ring 101. The groove 103 is opened on the connecting pipe 9, and the locking pin 104 is slidably connected in the groove 103. The mounting sleeve 105 is fixedly connected to the outer side of the coil fitting 2. The guide rod 106 is fixedly connected to the bottom of the inner side of the mounting sleeve 105, and the spring 107 is sleeved on the outer side of the guide rod 106.
[0027] This utility model uses the various components of the sealing mechanism 10 to work together. When the connecting pipe 9 is connected to the coil fitting 2 by the threaded movement, the pressure ring 101 squeezes the sealing ring 102. By squeezing the sealing ring 102, the sealing performance between the connecting pipe 9 and the coil fitting 2 can be enhanced. In addition, the spring 107 can move the locking pin 104 and slide it into the groove 103 opened in the connecting pipe 9, thereby further strengthening the connection stability between the connecting pipe 9 and the coil fitting 2.
[0028] One end of the spring 107 is fixedly connected to the inner bottom end of the mounting sleeve 105, and the other end of the spring 107 is fixedly connected to the locking pin 104.
[0029] When the locking pin 104 slides out of the groove 103, the locking pin 104 will compress the spring 107, which will cause the spring 107 to generate elastic force. Then, under the elastic action of the spring 107, the locking pin 104 will move.
[0030] The sealing ring 102 is slidably connected to the inner wall of the connecting pipe 9, and the sealing ring 102 is in contact with the coil fitting 2.
[0031] The sealing between the connecting pipe 9 and the coil 2 can be enhanced by the contact between the sealing ring 102 and the coil 2.
[0032] There are several grooves 103, and these grooves 103 are arranged in a ring array on the connecting pipe 9.
[0033] By sliding the locking pin 104 into the groove 103 distributed in a ring array within the connecting pipe 9, the connection between the connecting pipe 9 and the coil fitting 2 can be made more stable.
[0034] In practical use, first move the elastic rod 8, then place the upper support 5 on the lower support 4, and then rotate the bolt 6 to make the threaded movement between the bolt 6 and the lower support 4, so that the coil fitting 2 in the upper support 5 and the lower support 4 can be installed. Then loosen the elastic rod 8 and let the elastic rod 8 get into the slot 7 opened in the upper support 5. At this time, lock the upper support 5 and the lower support 4, which can effectively prevent the coil fitting 2 from falling off due to the loosening of the bolt 6.
[0035] During connection, the movable locking pin 104 is first moved, and then the connecting pipe 9 is rotated, causing threaded movement between the connecting pipe 9 and the coil fitting 2. During the movement of the connecting pipe 9, the pressure ring 101 squeezes the sealing ring 102, which improves the sealing performance between the connecting pipe 9 and the coil fitting 2. When the locking pin 104 slides out of the groove 103, the locking pin 104 will squeeze the spring 107, which will generate elastic force. Then, under the elastic action of the spring 107, the locking pin 104 moves and slides into the groove 103 opened in the connecting pipe 9, which can further enhance the stability between the connecting pipe 9 and the coil fitting 2.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A coil assembly for an evaporator comprising a mounting base (1), a coil member (2), characterised in that: The mounting base (1) has a coil fitting (2) on its front side. A support rod (3) is fixedly connected to the front side of the mounting base (1). A lower support seat (4) is fixedly connected to the upper end of the support rod (3). An upper support seat (5) is in contact with the upper end of the lower support seat (4). A bolt (6) is rotatably connected inside the upper support seat (5). The bolt (6) and the lower support seat (4) are connected by threads. A slot (7) is opened on the side of the upper support seat (5). An elastic rod (8) is slidably connected inside the slot (7). The elastic rod (8) is fixedly connected to the mounting base (1).
2. A coil assembly for an evaporator as defined in claim 1, wherein: The coil fitting (2) is connected to a connecting pipe (9) by a thread, and the connecting pipe (9) is provided with a sealing mechanism (10) that can improve the sealing of the connection.
3. A coil assembly for an evaporator as defined in claim 2, wherein: The sealing mechanism (10) includes a pressure ring (101), a sealing ring (102), a groove (103), a locking pin (104), an mounting sleeve (105), a guide rod (106), and a spring (107). The pressure ring (101) is fixedly connected to the inner wall of the connecting pipe (9), and the sealing ring (102) is fixedly connected to the pressure ring (101). The groove (103) is opened on the connecting pipe (9), and the locking pin (104) is slidably connected in the groove (103). The mounting sleeve (105) is fixedly connected to the outer side of the coil fitting (2). The guide rod (106) is fixedly connected to the bottom of the inner side of the mounting sleeve (105), and the spring (107) is sleeved on the outer side of the guide rod (106).
4. A coil assembly for an evaporator as defined in claim 3, wherein: One end of the spring (107) is fixedly connected to the inner bottom end of the mounting sleeve (105), and the other end of the spring (107) is fixedly connected to the locking pin (104).
5. A coil assembly for an evaporator as defined in claim 3, wherein: The sealing ring (102) is slidably connected to the inner wall of the connecting pipe (9), and the sealing ring (102) is in contact with the coil fitting (2).
6. A coil assembly for an evaporator as defined in claim 3, wherein: The number of grooves (103) is several, and the grooves (103) are arranged in a ring array on the connecting pipe (9).