Double-sided heating device

Abstract

The utility model relates to an automobile air conditioner heater, in particular to a double-sided heating device, which comprises a heating seat, a water inlet and a water outlet, a water inlet and a water outlet, a water inlet and a water outlet are arranged on the heating seat, the heating cavity penetrates through the top and the bottom of the heating seat, and the water inlet and the water outlet are communicated with the heating cavity. And the two heating substrates are respectively arranged at the top and the bottom of the heating seat, are positioned on the heating cavity and are used for heating the liquid in the heating cavity. According to the double-sided heating device provided by the utility model, double-sided heating is carried out on liquid through the two heating plates, so that the heating efficiency is greatly improved, the area of the heating substrate is reduced, higher unit volume power and unit mass power can be realized, higher heating power is realized in a limited structural region, and the service life of the heating substrate is prolonged. Therefore, the reliability of the product can be improved, and the service life of the product can be prolonged.

Description

Technical Field

[0001] The utility model relates to an automobile air conditioner heater, in particular to a double-sided heating device. Background Art

[0002] In order to improve the heating comfort of electric vehicles, a liquid heater is mostly used to heat air. For example, an automobile liquid heater disclosed in CN111536690A includes a housing and a bottom cover and a top cover provided on both sides of the housing. A first accommodation cavity is provided on one side of the housing near the bottom cover, and a circuit board is provided in the first accommodation cavity; a second accommodation cavity is provided on one side of the housing near the top cover, and a heating component is provided in the second accommodation cavity. The housing is also provided with a water inlet and a water outlet communicating with the second accommodation cavity. A first step groove is provided at the top of the open end of the first accommodation cavity, and a second step groove is provided at the top of the open end of the second accommodation cavity; the bottom cover and the top cover are respectively connected and fixed in the first step groove and the second step groove by means of upper and lower overlapping friction welding, and a heat dissipation fin is integrally formed on the lower surface of its heating substrate. This heater uses a heating substrate to heat the liquid in the flow channel, and the heating efficiency is relatively low. In order to ensure reliable heat exchange and heat exchange efficiency, the heating substrate needs to have a large area, which results in a large overall occupied area of the heater. If the heating power per unit area is increased, it will cause too high local temperature and unstable temperature control. Therefore, the existing structure is difficult to meet the requirements of high heating effect and small heating area at the same time. Content of the Utility Model

[0003] In order to solve the problems of the large area and low heat exchange efficiency of the above-mentioned heater, the utility model provides a double-sided heating device, and the specific technical solution is as follows:

[0004] A double-sided heating device includes: a heating base provided with a heating cavity penetrating through the top and bottom of the heating base and a water inlet and a water outlet communicating with the heating cavity; and two heating substrates respectively provided on the top and bottom of the heating base and located above the heating cavity for heating the liquid in the heating cavity.

[0005] Preferably, a plurality of partition plates are further provided in the heating cavity, and the partition plates are sequentially arranged in a staggered manner in the heating cavity, so that the heating cavity forms a meandering flow channel with two ends respectively communicating with the water inlet and the water outlet.

[0006] Further, the connection parts of the partition plates and the heating cavity are all arc-shaped.

[0007] Further, a plurality of the partition plates are arranged in parallel.

[0008] Further, a plurality of the partition plates are arranged at equal intervals.

[0009] Further, it further includes: a plurality of connecting columns, which are arranged in the heating cavity and connected to the partition plate.

[0010] Further, the connecting column is a circular column.

[0011] Further, it further includes: a flushing bay, which is arranged between the water inlet, the water outlet and the tortuous flow channel.

[0012] Further, a partition plate is further arranged in the heating cavity, and the partition plate forms a U-shaped flow channel in the heating cavity.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] A double-sided heating device provided by the present utility model heats a liquid on both sides through two heating plates, greatly improving the heating efficiency, reducing the area of the heating substrate, and being able to achieve higher power per unit volume and power per unit mass. A higher heating power is achieved in a limited structural area, reducing the heating power density of the heating plate, thereby improving the reliability and service life of the product. Description of the Drawings

[0015] Figure 1 is the structural schematic diagram of the present application;

[0016] Figure 2 is the front view of the present application;

[0017] Figure 3 is the rear view of the present application;

[0018] Figure 4 is the cross-sectional view of the present application;

[0019] Figure 5 is the structural schematic diagram of the heating base;

[0020] Figure 6 is the front view of the heating base;

[0021] Figure 7 is the rear view of the heating base;

[0022] Figure 8 is the cross-sectional view of the heating base;

[0023] Figure 9 is the structural schematic diagram of the heating substrate;

[0024] Figure 10 is the schematic diagram of the heating cavity forming a U-shaped flow channel. Detailed Embodiments

[0025] The present utility model will be further described in conjunction with the accompanying drawings.

[0026] Embodiment 1

[0027] As shown Figures 1 to 9 in the figure, a double-sided heating device includes a heating base 1 and two heating substrates 2. The heating base 1 is provided with a heating chamber 10, a water inlet 11 and a water outlet 12 communicating with the heating chamber 10. The heater penetrates through the top and bottom surfaces of the heating base 1 and is a penetrating structure. The two heating substrates 2 are respectively installed on the top and bottom of the heating base 1 and are hermetically located on the heating chamber 10 for heating the liquid in the heating chamber 10.

[0028] A number of partitions 13 are further provided inside the heating chamber 10. The number of partitions 13 are sequentially staggered at both ends of the heating chamber 10, so that the heating chamber 10 forms a tortuous flow channel 14 with both ends respectively communicating with the water inlet 11 and the water outlet 12; the heating substrate 2 is used to heat the liquid from both sides of the tortuous flow channel 14.

[0029] One end of the partition 13 is connected to one side of the heating chamber 10, and there is a gap between the other end and the other side of the heating chamber 10 for communicating adjacent flow channels. The partitions 13 are sequentially staggered at both ends of the heating chamber 10 means that when one end of a partition 13 is arranged on one side of the heating chamber 10, one end of an adjacent partition 13 is arranged on the other side of the heating chamber 10, forming a staggered structure, thereby forming a flow channel that reciprocates and winds from one end of the heating base 1 to the other end. The connection between the partition 13 and the heating chamber 10 is arc-shaped, and the arc shape can effectively avoid the formation of dead water areas, prevent the heating substrate 2 from dry burning, and improve the service life of the heating substrate 2 and the reliability of the heater.

[0030] The tortuous flow channel 14 is arranged from one end of the heating base 1 to the other end and unfolds along the width direction of the heating base 1, so that the liquid reciprocates between both ends of the heating base 1, extending the flow time of the liquid, that is, extending the contact time with the heating substrate 2, thereby improving the heating efficiency.

[0031] The heating substrate 2 heats from both sides of the tortuous flow channel 14, increasing the contact area with the liquid, improving the heat exchange efficiency, and being able to reduce the area of the heating substrate 2 and the area of the heater.

[0032] The water inlet 11 and the water outlet 12 are located at the same end of the heating base 1 and are respectively located on both sides of this end, facilitating the connection of pipelines.

[0033] A number of partitions 13 are arranged parallel to each other and at equal intervals, so that the width of the tortuous flow channel 14 is consistent, enabling the liquid to flow stably, which is beneficial to increasing the flow rate and achieving rapid heat exchange.

[0034] In order to prevent the partition 13 from deforming, three connecting columns 15 are further arranged in the heating chamber 10, the two ends of the connecting column 15 are respectively fixed on the two sides of the heating chamber 10, the connecting column 15 is also connected to the partition 13, and the connecting column 15 is respectively located at the two ends and the middle position of the partition 13, which effectively ensures that the partition 13 does not deform under high-speed water flow, thereby improving the stability and reliability of operation. Among them, the connecting column 15 can be a circular column, which has little effect on the water flow and is not easy to form a dead water area.

[0035] In order to prevent the formation of dead water areas at the water inlet 11 and the water outlet 12, a flushing bay 16 is provided between the water inlet 11 and the water outlet 12 and the circuitous flow channel 14. The flushing bay 16 is located on one side of the water inlet 11 and the water outlet 12, and can form turbulence without generating dead water areas, thereby avoiding dry burning of the heating substrate 2, thereby improving the reliability and service life of the heating plate.

[0036] The heating seat 1 is an integral structure, formed by aluminum die-casting, and has low cost and convenient processing.

[0037] The liquid enters from the water inlet 11, and then flows out from the water outlet 12 through the circuitous flow channel 14. The liquid is heated by the heating substrates 2 on both sides in the circuitous flow channel 14, which can achieve rapid heating with high heating efficiency. At the same time, it can achieve higher power per unit volume and power per unit mass, achieve higher heating power in a limited structural area, and reduce the heating power density of the heating substrate 2, thereby improving the reliability and life of the heater.

[0038] The flow velocity of the circuitous flow channel 14 is uniform and there is no dead water area, so that the heat on the heating substrate 2 in the local area cannot be taken away by the liquid, thereby preventing dry burning.

[0039] Embodiment 2

[0040] like Figure 10 As shown, the difference between this embodiment and the first embodiment is that a partition 13 is further provided in the heating chamber 10, and the partition 13 forms a U-shaped flow channel in the heating chamber 10, and the two ends of the U-shaped flow channel are respectively connected to the water inlet 11 and the water outlet 12.

[0041] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A double-sided heating device, characterized in that: include: A heating seat (1) is provided with a heating chamber (10) penetrating the top and bottom of the heating seat (1) and a water inlet (11) and a water outlet (12) communicating with the heating chamber (10); and Two heating substrates (2) are respectively arranged on the top and bottom of the heating seat (1) and located on the heating chamber (10) and are used to heat the liquid in the heating chamber (10).

2. A double-sided heating device according to claim 1, characterized in that: A plurality of partitions (13) are also provided in the heating chamber (10), and the partitions (13) are arranged in sequence and staggered in the heating chamber (10), so that the heating chamber (10) forms a circuitous flow channel (14) whose two ends are respectively connected to the water inlet (11) and the water outlet (12).

3. A double-sided heating device according to claim 2, characterized in that: The connection between the partition (13) and the heating chamber (10) is in the shape of an arc.

4. A double-sided heating device according to claim 2, characterized in that: A plurality of partitions (13) are arranged parallel to each other.

5. A double-sided heating device according to claim 4, characterized in that: A plurality of partitions (13) are arranged at equal intervals.

6. A double-sided heating device according to claim 2, characterized in that: Also includes: A plurality of connecting columns (15) are arranged in the heating chamber (10) and connected to the partition plate (13).

7. A double-sided heating device according to claim 6, characterized in that: The connecting column (15) is a circular column.

8. A double-sided heating device according to claim 2, characterized in that: Also includes: The flushing bay (16) is arranged between the water inlet (11), the water outlet (12) and the circuitous flow channel (14).

9. A double-sided heating device according to claim 2, characterized in that: A partition plate (13) is also provided in the heating chamber (10), and the partition plate (13) enables the heating chamber (10) to form a U-shaped flow channel.

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