A dual-channel heating unit water heater

Abstract

This utility model discloses a dual-channel heating unit water heater, wherein the bottom of the shell is provided with multiple pairs of longitudinally arranged baffles, the middle part of the water tank is provided with a partition, the middle shell is fixed to the top of the water tank, each baffle is inserted into the water tank, and the bottom of each baffle abuts against the bottom of the water tank to form a reciprocating and narrow flow channel. Each baffle is also provided with concave and convex textures on the outer side, and each baffle also has a slot connecting to the top of the middle shell. Each slot extends to the front and rear ends of the baffle, and each slot is also provided with an inwardly protruding limiting part on the inner side to divide the slot into multiple insertion chambers. Multiple heating packs are inserted and fixed in the corresponding insertion chambers. This utility model optimizes the flow channel in the water tank by setting baffles integrated with the middle shell, thereby achieving the effects of improving the matching of the whole vehicle end, accelerating the flow rate of coolant in the water chamber, improving heat exchange efficiency, and preventing local overheating.

Description

Technical Field

[0001] This utility model relates to a water heater with a dual-channel heating unit. Background Technology

[0002] The water chamber of a PTC heating core typically consists of a middle shell, a water tank, a sealing ring, and bolts for fixing the water tank and the middle shell. The water chamber is formed between the middle shell and the water tank.

[0003] The existing water chamber lacks baffles, and the inlet and outlet directions are opposite, with coolant entering from one side and flowing out from the opposite side. This design is difficult to match with the overall vehicle boundary and makes it difficult to achieve product platformization. Furthermore, when the water chamber volume is fixed, the coolant flow rate in the existing water chamber is low, which greatly reduces the heat exchange efficiency. Without baffles, the coolant flow path is short for the same water chamber volume, which easily generates eddies, resulting in excessively high local temperatures and uneven heat exchange. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a dual-channel heating unit water heater, which improves the vehicle end matching, accelerates the flow rate of coolant in the water chamber, improves heat exchange efficiency, and prevents local overheating by setting a baffle integrated with the middle shell.

[0005] The technical solution of this utility model is: a dual-channel heating unit water heater, including a top cover, a middle shell and a water tank. The bottom of the middle shell is provided with multiple pairs of longitudinally arranged baffles. The middle of the water tank is provided with a partition. One end of the partition is connected to the rear end of the water tank as a whole, and the other end of the partition is kept at a distance from the front end of the water tank. The water inlet and outlet of the water tank are respectively located at the front end of the water tank on both sides of the partition. The middle shell is fixed to the top of the water tank. Each of the baffles is inserted into the water tank, and the bottom of each of the baffles abuts against the bottom of the water tank.

[0006] The water tank is also symmetrically provided with a pair of baffles at the front end. One pair of baffles in the multiple pairs of baffles abuts against the two baffles respectively, so that the water tank is formed with a reciprocating and narrow flow channel.

[0007] Each of the baffles is also provided with raised and recessed textures on its outer side;

[0008] Each of the baffles also has a slot that connects to the top of the middle shell. Each of the slots extends to the front and rear ends of the baffle. Each of the slots also has an inwardly protruding limiting part on its inner side to divide the slot into multiple insertion chambers. Multiple heating packs are inserted and fixed in the corresponding insertion chambers.

[0009] Specifically, the partition, baffle, and water tank are integrally formed.

[0010] Furthermore, a busbar is fixed inside the middle shell, and each of the heating elements is electrically connected to the busbar.

[0011] Furthermore, the busbar is disposed inside the middle shell above each heat exchanger, and the top cover closes the top of the middle shell.

[0012] Furthermore, it also includes a control box, which contains a control board, and the busbar is electrically connected to the control board.

[0013] Furthermore, water temperature sensors are respectively installed on the inlet and outlet, and the two water temperature sensors are respectively connected to the control board.

[0014] Furthermore, a first sealing ring is provided at the connection between the upper cover and the middle shell.

[0015] Furthermore, the bottom of the middle shell and the top of the water tank are respectively provided with corresponding sealing ring mounting grooves, and a second sealing ring is also provided at the connection between the middle shell and the water tank.

[0016] Furthermore, the heating pack includes two heating plates, a ceramic chip disposed between the two heating plates, and an insulating thermally conductive silicone pad disposed on the outside of the heating plates. The insulating thermally conductive silicone pad is also provided with clips and wedge keys on its outside.

[0017] Preferably, the baffles are divided into three pairs, totaling six strips.

[0018] The beneficial effects of this utility model are as follows: In this utility model, the baffle formed by the bottom baffle of the middle shell changes the flow direction of the coolant in the water chamber, so that the inlet and outlet of the coolant are located on the same side of the heating pack, which improves the matching with the whole vehicle end and realizes product platformization; it also reduces the movable volume of coolant in the water chamber, thereby increasing the flow rate of coolant and increasing the heat exchange efficiency; the baffle can also increase the flow of coolant in the water chamber, reduce the generation of eddies, reduce the generation of bubbles in the water chamber, avoid the local overheating caused by eddies and bubbles, make the heat exchange more uniform, and have a higher safety factor;

[0019] In addition, this utility model has a simple structure and is easy to assemble. The baffle and the inner shell are integrated, which eliminates the need for additional assembly processes, simplifies the production process, reduces the cost of the heating core, and also reduces a separate component. The baffle itself does not have high dimensional accuracy requirements, which greatly reduces the workload of incoming material quality inspection and can ensure the consistency of components during the production process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model after removing the top cover and the busbar;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a perspective view of the inner shell in this utility model;

[0023] Figure 4 This is a perspective view of the inner shell in this utility model from another direction;

[0024] Figure 5 This is a perspective view of the water tank in this utility model;

[0025] Figure 6 This is a top view of the water tank in this utility model.

[0026] In the diagram: 1. Top cover; 2. Middle shell; 3. Water tank; 4. Partition; 6. Inlet; 7. Outlet; 8. Baffle; 9. Bump; 10. Slot; 11. Limiting part; 12. Heating pack; 13. Control box; 14. Control board; 15. Water temperature sensor; 16. First sealing ring; 17. Sealing ring mounting groove. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0028] Combination Figure 1-6 As shown, a dual-channel heating unit water heater includes an upper cover 1, a middle shell 2, and a water tank 3. The bottom of the middle shell 2 is provided with multiple pairs of longitudinally arranged baffles 8. The middle of the water tank 3 is provided with a partition 4. One end of the partition 4 is connected to the rear end of the water tank 3 as a whole, and the other end of the partition 4 is spaced apart from the front end of the water tank 3. The water inlet 6 and the water outlet 7 of the water tank 3 are respectively located at the front end of the water tank 3 on both sides of the partition 4. The middle shell 2 is fixed to the top of the water tank 3. Each of the baffles 8 is inserted into the water tank 3, and the bottom of each of the baffles 8 abuts against the bottom of the water tank 3.

[0029] The water tank 3 is also symmetrically provided with a pair of baffles 9 at the front end. One pair of baffles 8 has its ends abutting against the two baffles 9 respectively, so that a reciprocating and narrow flow channel is formed inside the water tank 3.

[0030] Each of the baffles 8 is further provided with concave and convex textures 10 on its outer side to increase the heat exchange area of ​​the baffle 8;

[0031] Each of the baffles 8 also has a slot 11 that connects to the top of the middle shell 2. Each slot 11 extends to the front and rear ends of the baffle 8. Each slot 11 also has an inwardly protruding limiting part 12 on its inner side to divide the slot 11 into multiple insertion chambers. Multiple heating packs 13 are inserted and fixed in the corresponding insertion chambers to reduce the manufacturing difficulty of the insertion chambers and reduce the material cost of the entire middle shell 2.

[0032] In the above structure, the baffle formed by the bottom baffle 8 of the middle shell 2 changes the flow direction of the coolant in the water chamber, so that the coolant inlet 6 and outlet 7 are located on the same side of the heating pack 13, which improves the matching with the whole vehicle end and realizes product platformization; it also reduces the movable volume of coolant in the water chamber, thereby increasing the flow rate of coolant and increasing heat exchange efficiency; the baffle can also increase the flow of coolant in the water chamber, reduce the generation of eddies and bubbles in the water chamber, avoid the local overheating caused by eddies and bubbles, make the heat exchange more uniform, and have a higher safety factor;

[0033] With a simple structure and easy assembly, the baffle and the inner shell are integrated, eliminating the need for additional assembly processes, simplifying the production process, reducing the cost of the heating core, and eliminating a separate component. The baffle itself does not have high dimensional accuracy requirements, which greatly reduces the workload of incoming material quality inspection and ensures the consistency of components during the production process.

[0034] In another embodiment, combined Figure 5 and Figure 6 As shown, the partition 4, the baffle 9, and the water tank 3 are integrally formed.

[0035] In another embodiment, a busbar is also fixed inside the middle shell 2, and each of the heating packs 13 is electrically connected to the busbar.

[0036] In another embodiment, combined Figure 1 and Figure 2 As shown, the busbar is installed inside the middle shell 2 above each heat exchanger, and the upper cover 1 closes the top of the middle shell 2.

[0037] In another embodiment, combined Figure 1 and Figure 2 As shown, it also includes a control box 14, which contains a control board 15, and the busbar is electrically connected to the control board 15.

[0038] In another embodiment, such as Figure 1 As shown, water temperature sensors 16 are also provided on the water inlet 6 and the water outlet 7 respectively, and the two water temperature sensors 16 are respectively connected to the control board 15.

[0039] In another embodiment, combined Figure 1 and Figure 2 As shown, a first sealing ring 17 is also provided at the connection between the upper cover 1 and the middle shell 2.

[0040] In another embodiment, combined Figure 3 and Figure 5 As shown, the bottom of the middle shell 2 and the top of the water tank 3 are respectively provided with corresponding sealing ring mounting grooves 18, and a second sealing ring is also provided at the connection between the middle shell 2 and the water tank 3.

[0041] In another embodiment, the heating pack 13 includes two heating pack plates, a ceramic chip disposed between the two heating pack plates, and an insulating thermally conductive silicone pad disposed on the outside of the heating pack plates. The insulating thermally conductive silicone pad is also provided with a clip and a wedge key on its outside.

[0042] Preferred, such as Figure 3 As shown, the baffle 8 is divided into three pairs, totaling six strips.

Claims

1. A dual-channel heating unit water heater, comprising an upper cover (1), a middle shell (2), and a water tank (3), characterized in that, The bottom of the middle shell (2) is provided with multiple pairs of longitudinally arranged baffles (8), and the middle of the water tank (3) is provided with a partition (4). One end of the partition (4) is connected to the rear end of the water tank (3) as a whole, and the other end of the partition (4) is kept at a distance from the front end of the water tank (3). The water inlet (6) and water outlet (7) of the water tank (3) are respectively located at the front end of the water tank (3) on both sides of the partition (4). The middle shell (2) is fixed to the top of the water tank (3). Each of the baffles (8) is inserted into the water tank (3), and the bottom of each of the baffles (8) abuts against the bottom of the water tank (3). The water tank (3) is also symmetrically provided with a pair of baffles (9) at the front end. One pair of the multiple pairs of baffles (8) abut against the two baffles (9) respectively, so that a reciprocating and narrow flow channel is formed inside the water tank (3); Each of the baffles (8) is also provided with concave and convex textures (10) on its outer side; Each of the baffles (8) also has a slot (11) that connects to the top of the middle shell (2). Each of the slots (11) extends to the front and rear ends of the baffle (8). Each of the slots (11) also has an inwardly protruding limiting part (12) on the inner side to divide the slot (11) into multiple insertion chambers. Multiple heating packs (13) are inserted and fixed in the corresponding insertion chambers.

2. A dual-channel heating unit water heater as described in claim 1, characterized in that, The partition (4), the baffle (9) and the water tank (3) are integrally formed.

3. A dual-channel heating unit water heater as described in claim 2, characterized in that, A busbar is also fixed inside the middle shell (2), and each of the heating packs (13) is electrically connected to the busbar.

4. A dual-channel heating unit water heater as described in claim 3, characterized in that, The busbar is located inside the middle shell (2) above each heat exchanger, and the top cover (1) closes the top of the middle shell (2).

5. A dual-channel heating unit water heater as described in claim 4, characterized in that, It also includes a control box (14), which contains a control board (15), and the busbar is electrically connected to the control board (15).

6. A dual-channel heating unit water heater as described in claim 5, characterized in that, Water temperature sensors (16) are also provided on the inlet (6) and outlet (7), and the two water temperature sensors (16) are connected to the control board (15) respectively.

7. A dual-channel heating unit water heater as described in claim 6, characterized in that, The connection between the upper cover (1) and the middle shell (2) is also provided with a first sealing ring (17).

8. A dual-channel heating unit water heater as described in claim 7, characterized in that, The bottom of the middle shell (2) and the top of the water tank (3) are respectively provided with corresponding sealing ring mounting grooves (18), and a second sealing ring is provided at the connection between the middle shell (2) and the water tank (3).

9. A dual-channel heating unit water heater as described in claim 8, characterized in that, The heating pack (13) has two heating pack plates, a ceramic chip disposed between the two heating pack plates, and an insulating thermally conductive silicone pad disposed on the outside of the heating pack plates. The insulating thermally conductive silicone pad is also provided with a clip and a wedge key on its outside.

10. A dual-channel heating unit water heater as described in claim 9, characterized in that, The baffle (8) is divided into three pairs, totaling six strips.

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