Heating plate and automobile liquid heater

Abstract

The utility model provides a heating plate and an automobile liquid heater, belonging to the heater technology field, the heating plate comprises a substrate, the substrate is coated with a resistance layer and an electrode layer, the resistance layer comprises a plurality of heating resistor groups, the electrode layer connects the plurality of heating resistor groups in series to form a heating channel, and the heating resistor group comprises a plurality of heating resistors which are arranged in parallel. According to the utility model, the heating resistors are arranged in parallel, so that the plurality of heating resistors are arranged in parallel, and the two ends of each heating resistor are connected with the electrode layers, so that when one of the heating resistors is damaged, the other heating resistors arranged in parallel with the damaged heating resistor can still be used, and the heating function of the heating plate is not influenced, namely the service life of the heating plate is prolonged; and the use cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid heating, and in particular relates to a heating plate and an automobile liquid heater. Background Art

[0002] Electric vehicles have developed rapidly in recent years. Safety, efficiency, endurance, and intelligence are particularly important in the popularization of electric vehicles. Various car companies have designed battery thermal management systems for power batteries and air-conditioning thermal management systems for heating and defrosting. Liquid heaters are an important part of battery thermal management systems and air-conditioning thermal management systems.

[0003] The liquid heater heats the coolant through a heating plate. Existing heating plates mostly generate heat through heating resistors. However, when some heating resistors are damaged, the entire heater will fail to heat and the entire heating plate needs to be replaced, which makes the liquid heater easily damaged and has a short service life.

[0004] Therefore, we propose a heating plate and an automobile liquid heater to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a heating plate and a car liquid heater which are not easy to be damaged and have a long service life.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] It comprises: a substrate, on which a resistance layer and an electrode layer are coated, the resistance layer comprises a plurality of heating resistor groups, the electrode layer connects the plurality of heating resistor groups in series to form a heating channel, wherein the heating resistor group comprises a plurality of heating resistors arranged in parallel.

[0008] In the above-mentioned heating plate, the electrode layer is connected to one end of a plurality of heating resistors arranged in parallel.

[0009] In the above-mentioned heating plate, the electrode layer includes a positive electrode and a negative electrode, and two ends of the heating resistor group are connected to the positive electrode and the negative electrode respectively.

[0010] In the above-mentioned heating plate, it includes: the heating resistor group includes a first heating resistor, a second heating resistor and a third heating resistor arranged in parallel, wherein there is a gap between the first heating resistor and the second heating resistor, and there is a gap between the second heating resistor and the third heating resistor.

[0011] In the above-mentioned heating plate, the ends of the heating resistor groups are connected to adjacent heating resistor groups through electrode layers.

[0012] In the above-mentioned heating plate, adjacent heating resistor groups are arranged in parallel.

[0013] In the above-mentioned heating plate, it includes a first heating part and a second heating part symmetrically arranged on a substrate, the first heating part includes a plurality of heating resistor groups, the second heating part includes a plurality of heating resistor groups, wherein the two ends of the first heating part are respectively connected to the positive pole and the negative pole, and the two ends of the second heating part are respectively connected to the positive pole and the negative pole.

[0014] In the above-mentioned heating plate, the heating channel is arranged in an S shape.

[0015] The utility model also provides an automobile liquid heater, comprising the above-mentioned heating plate, through which the cooling liquid is heated.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] By arranging the heating resistors in parallel, the multiple heating resistors are arranged in parallel, and both ends of the heating resistors are connected to electrode layers. When one of the heating resistors is damaged, the other heating resistors arranged in parallel with it can still be used without affecting the heating function of the heating plate, that is, the service life of the heating plate is extended and the use cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure A of the first embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0021] In the figure, 100, substrate; 110, first heating part; 120, second heating part; 200, resistor layer; 210, heating resistor group; 220, heating resistor; 221, first heating resistor; 222, second heating resistor; 223, third heating resistor; 300, electrode layer; 310, positive electrode; 320, negative electrode; 400, heating channel. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] Embodiment 1

[0025] like Figure 1 to Figure 2 As shown, the utility model provides a heating plate, a substrate 100, the substrate 100 is coated with a resistance layer 200 and an electrode layer 300, the resistance layer 200 includes a plurality of heating resistor groups 210, the electrode layer 300 connects the plurality of heating resistor groups 210 in series to form a heating channel 400, wherein the heating resistor group 210 includes a plurality of heating resistors 220 arranged in parallel.

[0026] The electrode layer 300 is connected to one end of a plurality of heating resistors 220 arranged in parallel.

[0027] The electrode layer 300 includes a positive electrode 310 and a negative electrode 320 , and two ends of the heating resistor group 210 are connected to the positive electrode 310 and the negative electrode 320 , respectively.

[0028] The heating plate is used to heat the coolant, and a heating resistor 220 is often arranged on the heating plate for heating. However, when the heating resistor 220 is partially damaged, the entire heating plate often needs to be replaced, resulting in a short service life of the heating plate and high maintenance costs. In this embodiment, a heating plate is provided, on which a resistance layer 200 and an electrode layer 300 are coated, the resistance layer 200 includes a plurality of heating resistors 220 arranged in parallel, the heating resistor group 210 is composed of a plurality of heating resistor groups 210 arranged in parallel, and the plurality of heating resistor groups 210 are connected in series through the electrode layer 300 to form a heating channel 400. By arranging the heating resistors 220 in parallel, the plurality of heating resistors 220 are arranged in parallel, and both ends of the heating resistors 220 are connected to the electrode layer 300. When one of the heating resistors 220 is damaged, the other heating resistors 220 arranged in parallel with it can still be used, which does not affect the heating function of the heating plate, that is, the service life of the heating plate is extended and the use cost is reduced.

[0029] like Figure 1 to Figure 2 As shown, the heating resistor group 210 includes a first heating resistor 221, a second heating resistor 222 and a third heating resistor 223 arranged in parallel, wherein there is a gap between the first heating resistor 221 and the second heating resistor 222, and there is a gap between the second heating resistor 222 and the third heating resistor 223.

[0030] In this embodiment, the heating resistor group 210 is preferably provided with three heating resistors 220, and there is a gap between each heating resistor 220, wherein the first heating resistor 221 and the third heating resistor 223 are respectively arranged at both ends of the second heating resistor 222. When one of the heating resistors 220 has a problem, the other two heating resistors 220 can still be turned on and work normally, avoiding the entire channel from being broken due to damage to one resistor, affecting the function of the heating plate, and the entire heating plate has a long service life and high practicality.

[0031] like Figure 1 to Figure 2 As shown, the ends of the heating resistor group 210 are connected to the adjacent heating resistor group 210 through the electrode layer 300 .

[0032] Adjacent heating resistor groups 210 are arranged in parallel.

[0033] The heating channel 400 is arranged in an S shape.

[0034] In this embodiment, a plurality of heating resistor groups 210 are arranged in parallel, and each heating resistor group 210 is connected through an electrode layer 300 to form an S-shaped heating channel 400. The entire heating channel 400 is formed by connecting the heating resistor groups 210 in series by the electrode layer 300, and is laid on the surface of the substrate 100, so that the surface of the substrate 100 is evenly laid with the heating channel 400, and the coolant is evenly heated to avoid affecting the subsequent heating efficiency due to uneven heating.

[0035] like Figure 1 to Figure 2 As shown, it includes a first heating part 110 and a second heating part 120 symmetrically arranged on a substrate 100, the first heating part 110 includes a plurality of heating resistor groups 210, and the second heating part 120 includes a plurality of heating resistor groups 210, wherein two ends of the first heating part 110 are respectively connected to a positive electrode 310 and a negative electrode 320, and two ends of the second heating part 120 are respectively connected to a positive electrode 310 and a negative electrode 320.

[0036] In this embodiment, the first heating part 110 and the second heating part 120 are respectively arranged on both sides of the substrate 100, so that the heating parts are evenly distributed on both sides of the substrate 100, and the first heating part 110 and the second heating part 120 are respectively connected to the positive electrode 310 and the negative electrode 320. The first heating part 110 and the second heating part 120 are independently arranged. When one of the heating parts fails, the other heating part can still work independently, which further improves the safety of the heating plate.

[0037] Embodiment 2

[0038] like Figure 3 As shown, this embodiment provides a car liquid heater, including the above-mentioned heating plate, and the coolant is heated by the heating plate.

[0039] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0040] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A heating plate, characterized in that: include: A substrate, on which a resistance layer and an electrode layer are coated, wherein the resistance layer includes a plurality of heating resistor groups, and the electrode layer connects the plurality of heating resistor groups in series to form a heating channel, wherein the heating resistor group includes a plurality of heating resistors arranged in parallel; The electrode layer is connected to one end of a plurality of heating resistors arranged in parallel; The heating resistor group comprises a first heating resistor, a second heating resistor and a third heating resistor arranged in parallel, wherein there is a gap between the first heating resistor and the second heating resistor, and there is a gap between the second heating resistor and the third heating resistor; The ends of the heating resistor group are connected to adjacent heating resistor groups through electrode layers; It also includes a first heating part and a second heating part symmetrically arranged on the substrate, the first heating part includes a plurality of heating resistor groups, the second heating part includes a plurality of heating resistor groups, wherein the two ends of the first heating part are respectively connected to the positive pole and the negative pole, and the two ends of the second heating part are respectively connected to the positive pole and the negative pole.

2. A heating plate according to claim 1, characterized in that: The electrode layer includes a positive electrode and a negative electrode, and two ends of the heating resistor group are connected to the positive electrode and the negative electrode respectively.

3. A heating plate according to claim 1, characterized in that: Adjacent heating resistor groups are arranged in parallel.

4. A heating plate according to claim 1, characterized in that: The heating channel is arranged in an S shape.

5. An automotive liquid heater, characterized in that: The heating plate comprises the heating plate according to any one of claims 1 to 4, wherein the cooling liquid is heated by the heating plate.

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