A metal fuel cell heat dissipation structure

Abstract

The utility model discloses a heat dissipation structure of a metal fuel cell, comprising: an outer shell, an upper cover, and a battery liquid cavity together forming a battery monomer, an air membrane side frame is installed between the battery liquid cavity and the outer shell, the air membrane side frame and the outer shell are both metal shells, a mounting plate is installed on the side of the air membrane side frame facing the inner side of the outer shell, the mounting plate and the air membrane side frame are arranged in an L-shaped structure, the length and height of the mounting plate are consistent with the interval between the air membranes, a mounting opening is opened inside the mounting plate, and a heat conducting plate is installed in the mounting opening of the mounting plate. The utility model provides a heat dissipation structure of a metal fuel cell to solve the problem that although the two heat dissipation methods of existing metal fuel cells can both improve the heat dissipation efficiency, while improving the efficiency, the energy consumption is increased, thereby affecting the normal operation of the battery in actual use.

Description

Technical Field

[0001] The utility model relates to the technical field of metal fuel cells, in particular to a heat dissipation structure of a metal fuel cell. Background Art

[0002] Metal fuel cells, also known as metal-air batteries, utilize the reaction between metal fuel plates and oxygen to form a continuous electricity generation device. Metal fuel cells have the advantages of low cost, non-toxicity, pollution-free, high specific energy, etc. They are abundant in resources, can be recycled, and have a safe and reliable structure. They are a new energy product with a wide range of uses. The main components of metal fuel cells include metal fuel plates and air membranes, among which metal fuel plates are mainly aluminum metal fuel plates, magnesium metal fuel plates and zinc metal fuel plates. The metal fuel plates are combined with air membranes to form an alloy by adding other components to form a device that continuously converts the chemical energy of the metal fuel plates into electrical energy. Metal fuel cells generate heat while outputting electrical energy. If the heat cannot be dissipated in time, the overall temperature of the battery will be out of control. When the temperature is out of control, the battery temperature will soar sharply, resulting in reduced power output and increased losses. Under severe conditions, the battery will cause rupture and damage.

[0003] Existing heat dissipation methods for metal fuel cells are liquid cooling and air cooling. The liquid cooling method is to add external pipes to circulate the electrolyte to dissipate heat. The advantage is good heat dissipation effect, but the disadvantage is that the pipes are easily blocked and difficult to clean. The air cooling method is to add an external fan to force air to dissipate heat. The advantage is simple structure, but the disadvantage is that the fan is a wearing part and is easily caused to malfunction. Although the above two methods can improve the heat dissipation efficiency, while improving the efficiency, they increase the energy consumption, which in turn affects the normal operation of the battery in actual use.

[0004] Therefore, it is necessary to provide a metal fuel cell heat dissipation structure to solve the above technical problems. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a metal fuel cell heat dissipation structure to solve the problem that although the two heat dissipation methods of the existing metal fuel cells can improve the heat dissipation efficiency, while improving the efficiency, they also increase the energy consumption, thereby affecting the normal operation of the battery in actual use.

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

[0007] A metal fuel cell heat dissipation structure, comprising: a housing;

[0008] The shell, the upper cover and the battery liquid cavity together form a battery monomer. An air membrane side frame is installed between the battery liquid cavity and the shell. The air membrane side frame and the shell are both metal shells.

[0009] In one embodiment, a mounting plate is installed on the side of the air membrane side frame facing the inner side of the shell, and the mounting plate and the air membrane side frame are arranged in an L-shaped structure. The length and height of the mounting plate are consistent with the interval between the air membranes. A mounting opening is opened inside the mounting plate, and a heat conducting plate is installed in the mounting opening of the mounting plate. The heat conducting plate is a corrugated structure composed of arc segments as a whole. The mounting opening is consistent with the structure of the heat conducting plate, the interior of the heat conducting plate is hollow, and the heat conducting plate is sealed and connected to the end of the mounting opening.

[0010] In one embodiment, slots are spaced apart on the outer shell, the slots are connected to the inner cavity of the heat sink, the structure of the heat sink is consistent with that of the heat conduction plate, the size of the inner cavity matches the size of the heat conduction plate, and the heat sink and the heat conduction plate are made of the same heat-conducting material.

[0011] In one embodiment, the heat dissipation plates, mounting plates, and heat conducting plates are installed in multiple groups at vertical intervals, and the installation positions of each group are arranged at equal distances.

[0012] In one embodiment, a heat dissipation slot is provided between adjacent heat dissipation plates, and a plurality of the heat dissipation slots are provided side by side and spaced apart. A partition is installed inside each heat dissipation slot. The partition is made of memory metal, one end of which is installed and connected to the inner wall of the heat dissipation slot, and the other end is placed in a free form.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) The utility model is connected to the external shell through an air film, has a large heat dissipation area, and the shell is in direct contact with the external air, so the heat dissipation effect is good. The air film heat dissipation structure uses the metal protective shell of the product itself without adding any additional structure. The air in the environment flows through the surface of the metal shell to take away the heat. It does not require active component support, so it does not consume electricity, has low loss, and the overall structure is reliable and durable.

[0015] (2) The utility model connects the outer shell to the battery cell by bolts, and then inserts the heat conducting plate into the inner cavity of the heat sink and fits with the inner wall of the inner cavity. After the heat conducting plate receives the heat transferred by the air film and the air film side frame, it transfers the heat to the heat sink outside the outer shell, so that the heat sink is in continuous contact with the outside air to dissipate heat, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the utility model;

[0017] Figure 2This is a detailed view of the housing and air membrane side frame of the utility model;

[0018] Figure 3 This is a detailed back view of the housing and the air membrane side frame of the utility model;

[0019] Figure 4 This is a detailed diagram of the interior of the heat sink of the utility model.

[0020] Among them, the names corresponding to the figure marks are: outer shell 1, upper cover 2, battery liquid chamber 3, air membrane side frame 4, mounting plate 41, heat conducting plate 42, mounting port 43, heat dissipation plate 5, inner cavity 51, slot 52, heat dissipation groove 6, partition 61. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0022] like Figure 1-Figure 2 As shown, the utility model provides a metal fuel cell heat dissipation structure, comprising: a housing 1, an upper cover 2, a battery liquid chamber 3, and an air membrane side frame 4;

[0023] like Figure 1 As shown, the shell 1, the upper cover 2, and the battery liquid cavity 3 together constitute a battery cell. An air membrane side frame 4 is installed between the battery liquid cavity 3 and the shell 1. The air membrane side frame 4 and the shell 1 are both metal shells. The shell 1 is fixed to the battery cell by screws. The shell 1 and the air membrane side frame metal structure on the side wall of the battery cell are tightly fitted to transfer heat. Since the battery generates heat while outputting electrical energy, the heat will first appear in the battery liquid cavity 3. At this time, the battery liquid cavity 3 is wrapped by the injection molded part and the air film. The heat can only be dissipated through the air film and the shell 1. The thermal conductivity of the air film is greater than that of the injection molded part. Therefore, the heat is mainly dissipated through the air film. Due to the limited area of ​​the air film, the heat dissipation capacity is limited. The heat dissipation area can be expanded and the heat dissipation capacity can be increased by connecting the air membrane side frame metal structure with the shell 1.

[0024] Preferably, in one embodiment, Figure 2-Figure 3As shown, a mounting plate 41 is installed on the side of the air film side frame 4 facing the inner side of the shell 1, and the mounting plate 41 and the air film side frame 4 are arranged in an L-shaped structure. The length and height of the mounting plate 41 are consistent with the interval between the air films. A mounting opening 43 is opened inside the mounting plate 41, and a heat conducting plate 42 is installed in the mounting opening 43 of the mounting plate 41. The heat conducting plate 42 is a wavy structure composed of arc segments as a whole. The mounting opening 43 is consistent with the structure of the heat conducting plate 42. The interior of the heat conducting plate 42 is hollow, and the heat conducting plate 42 is sealed and installed in connection with the end of the mounting opening 43. Through the arrangement of the mounting plate 41 and the heat conducting plate 42, the heat generated by the air film and the air film side frame 4 can be absorbed and transferred. At the same time, due to the structural arrangement of the heat conducting plate 42, the thermal contact area can be increased, and the heat absorption at the air film interval can be covered.

[0025] Preferably, in one embodiment, Figure 2-Figure 3 As shown, slots 52 are arranged at intervals on the outer shell 1, and the slots 52 are connected to the inner cavity 51 of the heat sink 5. The structure of the heat sink 5 is consistent with that of the heat conducting plate 42, and the size of the inner cavity 51 is matched with the size of the heat conducting plate 42. The heat sink 5 and the heat conducting plate 42 are made of the same heat conducting material. During operation, the outer shell 1 is connected to the battery cell by bolts, and then the heat conducting plate 42 is inserted into the inner cavity 51 of the heat sink 5 and fits with the inner wall surface of the inner cavity 51. After the heat conducting plate 42 receives the heat transferred by the air film and the air film side frame 4, the heat is transferred to the heat sink 5 outside the outer shell 1, so that the heat sink 5 is in continuous contact with the outside air for heat dissipation, thereby improving the heat dissipation efficiency.

[0026] Preferably, in one embodiment, Figure 2-Figure 3 As shown, the heat sink 5, the mounting plate 41, and the heat conducting plate 42 are installed in multiple groups at vertical intervals, and the installation positions of each group are arranged at equal distances, thereby improving the heat dissipation efficiency of the entire battery.

[0027] Preferably, in one embodiment, Figure 2 , Figure 4 As shown, a heat dissipation slot 6 is provided between adjacent heat dissipation plates 5, and a plurality of the heat dissipation slots 6 are provided side by side and spaced apart. A partition 61 is installed inside each heat dissipation slot 6. The partition 61 is made of memory metal, one end of which is installed and connected to the inner wall of the heat dissipation slot 6, and the other end is placed in a free form. When heat dissipation is required, the partition 61 changes its shape due to heat accumulation, so that the heat dissipation slot 6 is connected to the outside. After the heat dissipation is completed, the shape of the partition 61 is cold reset to seal the inside of the heat dissipation slot 6 to prevent dust from entering the battery pack.

[0028] Working principle of this utility model:

[0029] During operation, the shell 1 is fixed to the battery cell by screws. The shell 1 on the side wall of the battery cell fits tightly with the metal structure of the air membrane side frame to transfer heat. Since the battery generates heat while outputting electrical energy, the heat will first appear in the battery liquid cavity 3. At this time, the battery liquid cavity 3 is wrapped by the injection molded part and the air film. The heat can only be dissipated through the air film and the shell 1. The thermal conductivity of the air film is greater than that of the injection molded part. Therefore, the heat is mainly dissipated through the air film. Since the air film area is limited, the heat dissipation capacity is limited. The heat dissipation area can be expanded and the heat dissipation capacity can be increased by connecting the air membrane side frame metal structure with the shell 1.

[0030] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. A metal fuel cell heat dissipation structure, characterized in that: include: shell; The shell, the upper cover and the battery liquid cavity together form a battery monomer. An air membrane side frame is installed between the battery liquid cavity and the shell. The air membrane side frame and the shell are both metal shells.

2. A metal fuel cell heat dissipation structure according to claim 1, characterized in that: A mounting plate is installed on the side of the air membrane side frame facing the inner side of the shell, and the mounting plate and the air membrane side frame are arranged in an L-shaped structure. The length and height of the mounting plate are consistent with the interval between the air membranes. A mounting opening is opened inside the mounting plate, and a heat conducting plate is installed in the mounting opening of the mounting plate. The heat conducting plate as a whole is a wavy structure composed of arc segments, and the mounting opening is consistent with the structure of the heat conducting plate. The interior of the heat conducting plate is hollow, and the heat conducting plate is sealed and connected to the end of the mounting opening. Slots are spaced apart on the shell, and the slots are connected to the inner cavity of the heat sink. The structure of the heat sink is consistent with that of the heat conducting plate, and the size of the inner cavity matches the size of the heat conducting plate. The heat sink and the heat conducting plate are made of the same heat-conducting material.

3. A metal fuel cell heat dissipation structure according to claim 2, characterized in that: The heat dissipation plates, the mounting plates and the heat conducting plates are installed in multiple groups at vertical intervals, and the installation positions of each group are arranged at equal distances.

4. A metal fuel cell heat dissipation structure according to claim 3, characterized in that: A heat dissipation slot is provided between adjacent heat dissipation plates, and a plurality of the heat dissipation slots are provided side by side and spaced apart. A partition is installed inside each heat dissipation slot. The partition is made of memory metal, one end of which is installed and connected to the inner wall of the heat dissipation slot, and the other end is placed in a free form.

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