Heating middle shell

Abstract

The utility model relates to the technical field of heaters, in particular to a heating middle shell, a flow channel cavity is arranged inside the heating middle shell, a water inlet and a water outlet are both communicated with the flow channel cavity, a water inlet groove and a water outlet groove are arranged in the flow channel cavity, the water inlet groove is arranged close to the water inlet and communicated with the water inlet, and the water outlet groove is arranged close to the water outlet. The water outlet groove is arranged close to the water outlet and communicated with the water outlet, the groove bottom of the water inlet groove is obliquely arranged, the inclination height of the groove bottom of the water inlet groove is gradually increased in the direction from the water inlet to the interior of the runner cavity, a flow guide block is arranged on the groove bottom of the water inlet groove, and a stepped flow guide structure is formed between the flow guide block and the groove bottom of the water inlet groove; therefore, an effective flow speed adjusting structure can be formed at the water inlet to ensure that the flow speed and the pressure are concentrated and then are shunted, so that liquid entering the runner cavity can flow at a uniform speed, the uniformity of heat exchange is ensured, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, and in particular to a heating shell. Background Technology

[0002] In the field of electric vehicles, the heat dissipation performance of the heater in the air conditioning compressor is crucial to the overall performance and safety of the vehicle. With the popularization of electric vehicles, the demand for efficient and stable heat dissipation technology is increasing. How to achieve efficient heat dissipation has become a research focus. This technology must not only meet the need to remove heat from the heated steel plate, but also ensure that the heat is generated evenly in order to improve heat exchange efficiency and extend the service life of the steel plate.

[0003] Currently, the water inlet method in heaters is generally achieved by directly creating a horizontal water inlet groove inside the heating shell that connects to the water inlet, and simultaneously creating a horizontal water outlet groove near the water outlet for water discharge. However, this method has several drawbacks, as follows:

[0004] 1. Flow rate loss and uneven heat exchange: Water flows into the horizontal inlet groove through the inlet. Due to the lack of an effective flow rate adjustment structure, there is a significant flow rate loss. In the subsequent flow process, the flow rate is uneven, with a low flow rate at the front end and a high flow rate at the rear end. This makes it impossible for the heat exchange process between the fluid and the heated steel plate to proceed evenly, which in turn affects the overall heat exchange effect and leads to uneven heat exchange at the rear end.

[0005] 2. Large pressure difference between inlet and outlet and low heat exchange efficiency: As water flows into the horizontal inlet groove through the inlet, the flow rate gradually slows down, and in extreme cases, it may even approach a stationary state. This situation leads to an excessive pressure difference between the inlet and outlet, resulting in serious energy loss and low heat exchange efficiency. At the same time, the uneven heat exchange efficiency also causes uneven heating of different parts of the heating steel plate, affecting its service life and operational stability. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a heating shell that can improve heat exchange efficiency.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A heating shell is used in a heater of an air conditioning compressor in an electric vehicle. The heating shell is provided with an inlet and an outlet, and a flow channel cavity is provided inside the heating shell. The inlet and outlet are both connected to the flow channel cavity.

[0009] The flow channel cavity is provided with an inlet groove and an outlet groove. The inlet groove is located near the inlet and is connected to the inlet. The outlet groove is located near the outlet and is connected to the outlet.

[0010] The bottom of the water inlet groove is inclined, and the inclination height of the bottom of the water inlet groove gradually increases along the direction from the water inlet to the interior of the flow channel cavity. A guide block is provided on the bottom of the water inlet groove, and a stepped guide structure is formed between the guide block and the bottom of the water inlet groove.

[0011] Furthermore, the distance between the guide surface of the guide block and the bottom of the tank gradually increases along the direction from the inlet towards the interior of the flow channel cavity.

[0012] Furthermore, the angle between the guide surface of the guide block and the bottom of the water inlet groove is greater than the inclination angle of the bottom of the water inlet groove.

[0013] Furthermore, the bottom of the water outlet groove is inclined, and the inclination height of the bottom of the water outlet groove gradually increases along the direction from the water outlet towards the interior of the flow channel cavity.

[0014] Furthermore, the inclination angle of the bottom of the water inlet groove is smaller than the inclination angle of the bottom of the water outlet groove.

[0015] Furthermore, the extension length of the water outlet groove along the direction from the water outlet to the interior of the flow channel cavity is less than the extension length of the water inlet groove along the direction from the water inlet to the interior of the flow channel cavity.

[0016] Furthermore, the extension length of the water outlet groove along the direction from the water outlet to the interior of the flow channel cavity is equal to half the extension length of the water inlet groove along the direction from the water inlet to the interior of the flow channel cavity.

[0017] Furthermore, the initial inclined end of the bottom of the water outlet groove is located at the water outlet.

[0018] Furthermore, the initial inclined end of the bottom of the water inlet groove is located at the water inlet.

[0019] Furthermore, the initial end of the guide surface of the guide block is located at one-quarter of the extension length of the water inlet groove, and the final end of the guide surface of the guide block is located at three-quarters of the extension length of the water inlet groove.

[0020] The beneficial effects of this utility model are as follows:

[0021] This design involves tilting the bottom of the inlet groove, with the tilt height gradually increasing from the inlet towards the interior of the flow channel cavity. A guide block is installed on the bottom of the inlet groove, forming a stepped flow guiding structure between the guide block and the bottom of the groove. This creates an effective flow velocity regulation structure at the inlet, ensuring that the flow velocity and pressure are concentrated before being distributed outwards. This allows for uniform flow of the liquid entering the flow channel cavity, thereby ensuring uniform heat exchange and improving heat exchange efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the heating shell of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the heating shell of this utility model;

[0024] Label Explanation:

[0025] 1. Inlet; 2. Outlet; 3. Flow channel cavity; 4. Inlet groove; 5. Outlet groove; 6. Guide block. Detailed Implementation

[0026] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] Please refer to Figure 1 as well as Figure 2 A heating shell is used in a heater of an air conditioning compressor in an electric vehicle. The heating shell is provided with an inlet and an outlet, and a flow channel cavity is provided inside the heating shell. The inlet and outlet are both connected to the flow channel cavity.

[0028] The flow channel cavity is provided with an inlet groove and an outlet groove. The inlet groove is located near the inlet and is connected to the inlet. The outlet groove is located near the outlet and is connected to the outlet.

[0029] The bottom of the water inlet groove is inclined, and the inclination height of the bottom of the water inlet groove gradually increases along the direction from the water inlet to the interior of the flow channel cavity. A guide block is provided on the bottom of the water inlet groove, and a stepped guide structure is formed between the guide block and the bottom of the water inlet groove.

[0030] As can be seen from the above description, the beneficial effects of this utility model are as follows:

[0031] This design involves tilting the bottom of the inlet groove, with the tilt height gradually increasing from the inlet towards the interior of the flow channel cavity. A guide block is installed on the bottom of the inlet groove, forming a stepped flow guiding structure between the guide block and the bottom of the groove. This creates an effective flow velocity regulation structure at the inlet, ensuring that the flow velocity and pressure are concentrated before being distributed outwards. This allows for uniform flow of the liquid entering the flow channel cavity, thereby ensuring uniform heat exchange and improving heat exchange efficiency.

[0032] Furthermore, the distance between the guide surface of the guide block and the bottom of the tank gradually increases along the direction from the inlet towards the interior of the flow channel cavity.

[0033] As can be seen from the above description, by setting an inclined guide block, the obstruction of the liquid entering through the inlet can be further improved, thus ensuring the uniformity of heat exchange.

[0034] Furthermore, the angle between the guide surface of the guide block and the bottom of the water inlet groove is greater than the inclination angle of the bottom of the water inlet groove.

[0035] As can be seen from the above description, by setting up the above structure, the liquid near the water channel can change its flow rate, velocity, direction, etc., thereby making the obstruction of the liquid entering from the inlet more effective, and further ensuring the uniformity of heat exchange.

[0036] Furthermore, the bottom of the water outlet groove is inclined, and the inclination height of the bottom of the water outlet groove gradually increases along the direction from the water outlet towards the interior of the flow channel cavity.

[0037] Furthermore, the inclination angle of the bottom of the water inlet groove is smaller than the inclination angle of the bottom of the water outlet groove.

[0038] As can be seen from the above description, by setting the above structure, on the one hand, the water inlet speed is distributed evenly, and the water outlet speed is relatively slow to achieve a certain balance, thereby further effectively blocking the liquid entering through the inlet, and thus further ensuring the uniformity of heat exchange.

[0039] Furthermore, the extension length of the water outlet groove along the direction from the water outlet to the interior of the flow channel cavity is less than the extension length of the water inlet groove along the direction from the water inlet to the interior of the flow channel cavity.

[0040] As can be seen from the above description, since the temperature at the rear end of the water channel is rising, in order to reduce the water flow temperature, the length of the outlet groove is shortened so that it can exchange heat with the surrounding area. This can further effectively block the liquid entering from the inlet, thereby further ensuring the uniformity of heat exchange.

[0041] Furthermore, the extension length of the water outlet groove along the direction from the water outlet to the interior of the flow channel cavity is equal to half the extension length of the water inlet groove along the direction from the water inlet to the interior of the flow channel cavity.

[0042] As can be seen from the above description, as the liquid flows to the rear end of the waterway, the power and flow rate are constant. Since the water temperature at the rear end of the waterway rises, surface volume heat exchange is required. Therefore, the extension length of the outlet groove along the direction from the outlet to the interior of the flow channel cavity is equal to half the extension length of the inlet groove along the direction from the inlet to the interior of the flow channel cavity, which is beneficial for uniform heat exchange with the external fluid.

[0043] Furthermore, the initial inclined end of the bottom of the water outlet groove is located at the water outlet.

[0044] Furthermore, the initial inclined end of the bottom of the water inlet groove is located at the water inlet.

[0045] Furthermore, the initial end of the guide surface of the guide block is located at one-quarter of the extension length of the water inlet groove, and the final end of the guide surface of the guide block is located at three-quarters of the extension length of the water inlet groove.

[0046] Please refer to Figure 1 and Figure 2 As shown, Embodiment 1 of this utility model is as follows:

[0047] Please refer to Figure 1 and Figure 2 A heating shell is used in a heater of an air conditioning compressor in an electric vehicle. The heating shell is provided with an inlet 1 and an outlet 2. The heating shell is provided with a flow channel cavity 3 inside. The inlet 1 and the outlet 2 are both connected to the flow channel cavity 3.

[0048] The flow channel cavity 3 is provided with an inlet groove 4 and an outlet groove 5. The inlet groove 4 is located near the inlet 1 and is connected to the inlet 1. The outlet groove 5 is located near the outlet 2 and is connected to the outlet 2.

[0049] The bottom of the water inlet groove 4 is inclined, and the inclination height of the bottom of the water inlet groove 4 gradually increases along the direction from the water inlet 1 to the interior of the flow channel cavity 3. A guide block 6 is provided on the bottom of the water inlet groove 4, and a stepped guide structure is formed between the guide block 6 and the bottom of the water inlet groove 4.

[0050] Please refer to Figure 1 and Figure 2 The distance between the guide surface of the guide block 6 and the bottom of the tank gradually increases along the direction from the inlet 1 toward the interior of the flow channel cavity 3.

[0051] The angle between the guide surface of the guide block 6 and the bottom of the inlet groove 4 (the angle range is 15°-30°, determined according to the size and shape of different inlets) is greater than the inclination angle of the bottom of the inlet groove 4 (the inclination angle range is 15°-30°, determined according to the size and shape of different inlets).

[0052] The bottom of the water outlet groove 5 is inclined, and the inclination height of the bottom of the water outlet groove 5 gradually increases along the direction from the water outlet 2 toward the interior of the flow channel cavity 3.

[0053] The inclination angle of the bottom of the water inlet groove 4 is smaller than that of the bottom of the water outlet groove 5 (the inclination angle ranges from 15° to 30°, depending on the size and shape of the water inlet).

[0054] Please refer to Figure 1and Figure 2 The extension length of the water outlet groove 5 along the water outlet 2 toward the interior of the flow channel cavity 3 is less than the extension length of the water inlet groove 4 along the water inlet 1 toward the interior of the flow channel cavity 3.

[0055] The length of the water outlet groove 5 extending from the water outlet 2 into the interior of the flow channel cavity 3 is equal to half the length of the water inlet groove 4 extending from the water inlet 1 into the interior of the flow channel cavity 3.

[0056] The inclined initial end of the bottom of the water outlet groove 5 is located at the water outlet 2.

[0057] The initial inclined end of the bottom of the water inlet groove 4 is located at the water inlet 1.

[0058] The initial end of the flow guiding surface of the flow guiding block 6 is located at one-quarter of the extension length of the water inlet groove 4, and the final end of the flow guiding surface of the flow guiding block 6 is located at three-quarters of the extension length of the water inlet groove 4.

[0059] In summary, the heating shell provided by this utility model, by tilting the bottom of the water inlet groove, gradually increases the tilt height of the bottom of the water inlet groove towards the interior of the flow channel cavity. A guide block is provided on the bottom of the water inlet groove, forming a stepped guide structure between the guide block and the bottom of the water inlet groove. This can form an effective flow rate regulation structure at the water inlet, ensuring that the flow rate and pressure are concentrated before the flow is distributed out, thereby enabling the liquid entering the flow channel cavity to flow at a uniform speed, thus ensuring the uniformity of heat exchange and improving the heat exchange efficiency.

[0060] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heating middle shell for use in a heater on an electric vehicle air conditioning compressor, characterized by, The heating shell is provided with an inlet and an outlet, and the interior of the heating shell is provided with a flow channel cavity. The inlet and outlet are both connected to the flow channel cavity. The flow channel cavity is provided with an inlet groove and an outlet groove. The inlet groove is located near the inlet and is connected to the inlet. The outlet groove is located near the outlet and is connected to the outlet. The bottom of the water inlet groove is inclined, and the inclination height of the bottom of the water inlet groove gradually increases along the direction from the water inlet to the interior of the flow channel cavity. A guide block is provided on the bottom of the water inlet groove, and a stepped guide structure is formed between the guide block and the bottom of the water inlet groove.

2. The heating mid-shell of claim 1, wherein, The distance between the guide surface of the guide block and the bottom of the tank gradually increases along the direction from the inlet towards the interior of the flow channel cavity.

3. The heating mid-shell of claim 2, wherein, The angle between the guide surface of the guide block and the bottom of the water inlet groove is greater than the inclination angle of the bottom of the water inlet groove.

4. The heating mid-shell of claim 1, wherein, The bottom of the water outlet groove is inclined, and the inclination height of the bottom of the water outlet groove gradually increases along the direction from the water outlet towards the interior of the flow channel cavity.

5. The heating mid-shell of claim 4, wherein, The inclination angle of the bottom of the water inlet groove is smaller than that of the bottom of the water outlet groove.

6. The heating mid-shell of claim 4, wherein, The extension length of the water outlet groove along the direction from the water outlet to the interior of the flow channel cavity is less than the extension length of the water inlet groove along the direction from the water inlet to the interior of the flow channel cavity.

7. The heating mid-shell of claim 6, wherein, The length of the water outlet groove extending from the water outlet into the interior of the flow channel cavity is equal to half the length of the water inlet groove extending from the water inlet into the interior of the flow channel cavity.

8. The heating mid-shell of claim 4, wherein, The inclined initial end of the bottom of the water outlet groove is located at the water outlet.

9. The heating mid-shell of claim 1, wherein, The initial inclined end of the bottom of the water inlet groove is located at the water inlet.

10. The heating mid-shell of claim 9, wherein, The initial flow-guiding end of the flow-guiding surface of the flow-guiding block is located at one-quarter of the extension length of the water inlet groove, and the final flow-guiding end of the flow-guiding surface of the flow-guiding block is located at three-quarters of the extension length of the water inlet groove.

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