Heat dissipation device for outer side of battery cell

Abstract

The utility model relates to the technical field of battery cell heat dissipation, and discloses a heat dissipation device for the outer side of a battery cell, which solves the problem that the normal use of a current battery is influenced due to over-high temperature, and comprises a shell, a cover plate with a pole column is arranged at the top of the shell, the battery is arranged in the shell, two groups of heat dissipation holes are symmetrically formed in the outer side of the shell, and the battery is arranged in the shell. A heat dissipation mechanism is arranged on the outer side of the shell and comprises a first heat dissipation frame fixed to the outer side of the shell. According to the utility model, through the cooperation between the heat dissipation hole and the heat dissipation frame II and the cooperation between the heat dissipation channel and the heat dissipation frame I, heat in the shell can be conveniently discharged from the heat dissipation opening, so that heat dissipation of the battery is facilitated, and through the cooperation between the rotating disc and the rotating shaft, the eccentric block can conveniently rotate to be separated from the guide plate; and through cooperation between a guide plate and a guide column and cooperation between a spring and a connecting column, a sealing plate and a sealing ring can be conveniently attached to seal the heat dissipation opening, and therefore heat insulation can be conveniently conducted.

Description

Technical Field

[0001] This utility model belongs to the field of battery cell heat dissipation technology, specifically a heat dissipation device for the outside of a battery cell. Background Technology

[0002] A single battery cell generally consists of a casing, a cover plate with terminals, and a cell pack inside the casing. Single batteries tend to generate heat during charging and discharging, but excessively high temperatures can easily damage the single battery cell. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a heat dissipation device for the outside of the battery cell, which effectively solves the problem of excessive battery temperature affecting normal use.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a heat dissipation device for the outer side of a battery cell, comprising a housing, a cover plate with pole posts on the top of the housing, a battery inside the housing, two sets of heat dissipation holes symmetrically arranged on the outer side of the housing, and a heat dissipation mechanism on the outer side of the housing.

[0005] The heat dissipation mechanism includes a heat dissipation frame 1 fixed to the outside of the housing. The heat dissipation frame 1 has a heat dissipation opening on the side away from the housing. Two heat dissipation frames 2 are symmetrically fixed to the outside of the housing. The two heat dissipation frames 2 are respectively fitted onto two sets of heat dissipation holes, and heat dissipation channels are fixedly connected between the two heat dissipation frames 2 and the heat dissipation frame 1.

[0006] Preferably, the heat dissipation frame is symmetrically fixedly connected to the housing with two guide posts, and the same guide plate is movably sleeved on the outer side of the two guide posts. The guide plate is symmetrically fixedly connected to the housing with two springs, and the two springs are respectively sleeved on the outer side of the two guide posts. A sealing plate is provided between the guide plate and the heat dissipation port, and two connecting posts are symmetrically fixedly connected between the sealing plate and the guide plate.

[0007] Preferably, the sealing plate and the heat dissipation port are at the same height, and a sealing ring located at the heat dissipation port is fixedly connected to the inner side wall of the heat dissipation frame. The inner diameter of the sealing ring is equal to the outer diameter of the heat dissipation port, and the outer diameter of the sealing ring is equal to the outer diameter of the sealing plate.

[0008] Preferably, the heat dissipation frame 1 is rotatably connected to a rotating shaft located between the sealing plate and the guide plate. The top end of the rotating shaft extends to the outside of the heat dissipation frame 1 and is fixedly connected to a turntable. An eccentric block is fixedly sleeved on the outside of the rotating shaft. The eccentric block abuts against the side of the guide plate near the sealing plate. A sealing bearing is provided at the top of the heat dissipation frame 1 and is sleeved on the outside of the rotating shaft.

[0009] Preferably, the turntable is equipped with bolts, and a top ring is fixedly connected to the top of the heat dissipation frame. The top of the top ring is symmetrically provided with screw hole 2 and screw hole 1. Both screw hole 2 and screw hole 1 are adapted to the bolts, and the bottom end of the bolt is screwed into screw hole 2.

[0010] Preferably, a connecting cylinder is fixedly connected to the side of the heat dissipation frame away from the housing. The connecting cylinder is located at the heat dissipation port, and the inner diameter of the connecting cylinder is equal to the inner diameter of the heat dissipation port. The outer side of the connecting cylinder is provided with an external thread, and the outer side of the heat dissipation frame is provided with a threaded sleeve. The internal thread of the threaded sleeve is adapted to the external thread, and the threaded sleeve is threaded onto the outer side of the connecting cylinder through the external thread. A side ring is fixedly connected to the end of the threaded sleeve away from the heat dissipation frame. The side ring abuts against the connecting cylinder, and a filter screen is fixedly connected to the inner side of the side ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) In this utility model, the heat dissipation hole and heat dissipation frame 2 and the heat dissipation channel and heat dissipation frame 1 are matched to facilitate the heat dissipation of the heat inside the shell from the heat dissipation port, thereby facilitating the heat dissipation of the battery. The eccentric block is rotated and disengaged from the guide plate by the matching between the guide plate and the guide post and the spring and the connecting post, thereby facilitating the sealing plate and the sealing ring to fit together and seal the heat dissipation port, thereby facilitating heat insulation.

[0013] (2) The new type of filter screen is easy to install at one end of the connecting cylinder by means of the cooperation between the connecting cylinder and the external thread, as well as the screw sleeve and the side ring, so as to play a role in preventing dust from entering the housing. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the heat dissipation device used on the outside of the battery cell of this utility model.

[0017] Figure 2 This is a schematic diagram showing the disassembled structure of the housing and the cover plate with pole post of this utility model;

[0018] Figure 3 This is a schematic diagram of the heat dissipation mechanism of this utility model;

[0019] Figure 4 This is a cross-sectional view of the heat dissipation frame of this utility model;

[0020] Figure 5 This is a schematic diagram of the disassembled structure of the turntable and top ring of this utility model;

[0021] Figure 6 This is a schematic diagram showing the disassembled structure of the threaded sleeve and connecting cylinder of this utility model.

[0022] In the diagram: 1. Housing; 2. Heat dissipation mechanism; 201. Heat dissipation frame one; 202. Heat dissipation channel; 203. Heat dissipation frame two; 204. Eccentric block; 205. Turntable; 206. Top ring; 207. Sealing plate; 208. Sealing ring; 209. Screw sleeve; 2010. Connecting cylinder; 2011. Heat dissipation port; 2012. Guide post; 2013. Connecting post; 2014. Rotating shaft; 2015. Spring; 2016. Guide plate; 2017. Bolt; 2018. Screw hole one; 2019. Screw hole two; 2020. External thread; 2021. Side ring; 2022. Filter screen; 3. Cover plate with terminal post; 4. Battery; 5. Heat dissipation hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example 1, by Figure 1-2 As shown, the present invention includes a housing 1, a cover plate 3 with pole posts on the top of the housing 1, a battery 4 inside the housing 1, two sets of heat dissipation holes 5 symmetrically arranged on the outer side of the housing 1, and a heat dissipation mechanism 2 on the outer side of the housing 1.

[0025] Specifically, by Figure 3-5The heat dissipation mechanism 2 includes a heat dissipation frame 201 fixed to the outside of the housing 1. A heat dissipation opening 2011 is provided on the side of the heat dissipation frame 201 away from the housing 1. Two heat dissipation frames 203 are symmetrically fixedly connected to the outside of the housing 1. The two heat dissipation frames 203 are respectively fitted onto two sets of heat dissipation holes 5, and heat dissipation channels 202 are fixedly connected between each of the two heat dissipation frames 203 and the heat dissipation frame 201. Two guide posts 2012 are symmetrically fixedly connected between the heat dissipation frame 201 and the housing 1. The outer side is movably fitted with the same guide plate 2016. Two springs 2015 are symmetrically fixedly connected between the guide plate 2016 and the housing 1. The two springs 2015 are respectively fitted onto the outer sides of two guide posts 2012. A sealing plate 207 is provided between the guide plate 2016 and the heat dissipation vent 2011. Two connecting posts 2013 are symmetrically fixedly connected between the sealing plate 207 and the guide plate 2016. The sealing plate 207 and the heat dissipation vent 2011 are at the same height. A fixed connection is made on the inner wall of the heat dissipation frame 201. A sealing ring 208 is connected at the heat dissipation port 2011. The inner diameter of the sealing ring 208 is equal to the outer diameter of the heat dissipation port 2011, and the outer diameter of the sealing ring 208 is equal to the outer diameter of the sealing plate 207. A rotating shaft 2014 is rotatably connected inside the heat dissipation frame 201 between the sealing plate 207 and the guide plate 2016. The top end of the rotating shaft 2014 extends to the outside of the heat dissipation frame 201 and is fixedly connected to a turntable 205. An eccentric block 204 is fixedly sleeved on the outside of the rotating shaft 2014. 4. The guide plate 2016 abuts against the side near the sealing plate 207. The top of the heat dissipation frame 201 is provided with a sealing bearing. The sealing bearing is sleeved on the outside of the rotating shaft 2014. The turntable 205 is equipped with a bolt 2017. The top of the heat dissipation frame 201 is fixedly connected with a top ring 206. The top of the top ring 206 is symmetrically provided with screw hole 2019 and screw hole 1018. Screw hole 2019 and screw hole 1018 are both adapted to bolt 2017, and the bottom end of bolt 2017 is screwed into screw hole 2019.

[0026] In the initial state, the bottom end of bolt 2017 is screwed into screw hole 2019, while eccentric block 204 abuts against guide plate 2016 to limit guide plate 2016. Both springs 2015 are in a compressed state. At this time, the heat inside the housing 1 is discharged from heat dissipation port 2011 to dissipate heat from the battery. When heat dissipation is not required, first loosen bolt 2017 to disengage from screw hole 2019, then rotate turntable 205 180° to drive shaft 2014 to rotate and drive eccentric block 204 to rotate and disengage from guide plate 2016. Then screw bolt 2017 into screw hole 2018 to fix turntable 205. At the same time, the two springs 2015 reset and drive guide plate 2016 to slide along two guide posts 2012. Through two connecting posts 2013, drive sealing plate 207 to move until it fits against sealing ring 208. Finally, seal heat dissipation port 2011 for heat insulation.

[0027] Specifically, by Figure 6 As shown, a connecting cylinder 2010 is fixedly connected to the side of the heat dissipation frame 201 away from the housing 1. The connecting cylinder 2010 is located at the heat dissipation port 2011, and the inner diameter of the connecting cylinder 2010 is equal to the inner diameter of the heat dissipation port 2011. The outer side of the connecting cylinder 2010 is provided with an external thread 2020. The outer side of the heat dissipation frame 201 is provided with a threaded sleeve 209. The internal thread of the threaded sleeve 209 is adapted to the external thread 2020, and the threaded sleeve 209 is threaded onto the outer side of the connecting cylinder 2010 through the external thread 2020. A side ring 2021 is fixedly connected to the end of the threaded sleeve 209 away from the heat dissipation frame 201. The side ring 2021 abuts against the connecting cylinder 2010. A filter screen 2022 is fixedly connected to the inner side of the side ring 2021.

[0028] In use, first put the screw sleeve 209 on the outside of the connecting cylinder 2010 and rotate it clockwise to move the side ring 2021 and the filter screen 2022 until the side ring 2021 abuts against the connecting cylinder 2010. Finally, install the filter screen 2022 on the connecting cylinder 2010 to prevent dust from entering the housing 1.

Claims

1. A heat dissipation device for the outer side of a battery cell, comprising a housing (1), characterized in that: The top of the housing (1) is provided with a cover plate (3) with pole posts, the inside of the housing (1) is provided with a battery (4), the outside of the housing (1) is provided with two sets of heat dissipation holes (5), and the outside of the housing (1) is provided with a heat dissipation mechanism (2). The heat dissipation mechanism (2) includes a heat dissipation frame 1 (201) fixed to the outside of the housing (1). The heat dissipation frame 1 (201) has a heat dissipation opening (2011) on the side away from the housing (1). Two heat dissipation frames 2 (203) are symmetrically fixed to the outside of the housing (1). The two heat dissipation frames 2 (203) are respectively fitted onto two sets of heat dissipation holes (5), and heat dissipation channels (202) are fixedly connected between the two heat dissipation frames 2 (203) and the heat dissipation frame 1 (201).

2. A heat dissipation device for the outer side of a battery cell according to claim 1, characterized in that: Two guide posts (2012) are symmetrically fixedly connected between the heat dissipation frame (201) and the shell (1). The same guide plate (2016) is movably sleeved on the outside of the two guide posts (2012). Two springs (2015) are symmetrically fixedly connected between the guide plate (2016) and the shell (1). The two springs (2015) are respectively sleeved on the outside of the two guide posts (2012). A sealing plate (207) is provided between the guide plate (2016) and the heat dissipation port (2011). Two connecting posts (2013) are symmetrically fixedly connected between the sealing plate (207) and the guide plate (2016).

3. A heat dissipation device for the outer side of a battery cell according to claim 2, characterized in that: The sealing plate (207) and the heat dissipation port (2011) are at the same height. A sealing ring (208) located at the heat dissipation port (2011) is fixedly connected to the inner wall of the heat dissipation frame (201). The inner diameter of the sealing ring (208) is equal to the outer diameter of the heat dissipation port (2011), and the outer diameter of the sealing ring (208) is equal to the outer diameter of the sealing plate (207).

4. A heat dissipation device for the outer side of a battery cell according to claim 1, characterized in that: The heat dissipation frame 1 (201) is rotatably connected to a rotating shaft (2014) located between the sealing plate (207) and the guide plate (2016). The top end of the rotating shaft (2014) extends to the outside of the heat dissipation frame 1 (201) and is fixedly connected to a turntable (205). An eccentric block (204) is fixedly sleeved on the outside of the rotating shaft (2014). The eccentric block (204) abuts against the side of the guide plate (2016) near the sealing plate (207). A sealed bearing is provided at the top of the heat dissipation frame 1 (201), and the sealed bearing is sleeved on the outside of the rotating shaft (2014).

5. A heat dissipation device for the outer side of a battery cell according to claim 4, characterized in that: Bolts (2017) are installed on the turntable (205). A top ring (206) is fixedly connected to the top of the heat dissipation frame (201). The top of the top ring (206) is symmetrically provided with screw holes two (2019) and screw holes one (2018). Screw holes two (2019) and screw holes one (2018) are both adapted to the bolts (2017), and the bottom end of the bolts (2017) is screwed into screw holes two (2019).

6. A heat dissipation device for the outer side of a battery cell according to claim 1, characterized in that: A connecting cylinder (2010) is fixedly connected to the side of the heat dissipation frame (201) away from the housing (1). The connecting cylinder (2010) is located at the heat dissipation port (2011), and the inner diameter of the connecting cylinder (2010) is equal to the inner diameter of the heat dissipation port (2011). The outer side of the connecting cylinder (2010) is provided with an external thread (2020). The outer side of the heat dissipation frame (201) is provided with a threaded sleeve (209). The internal thread of the threaded sleeve (209) is adapted to the external thread (2020), and the threaded sleeve (209) is threaded onto the outer side of the connecting cylinder (2010) through the external thread (2020). A side ring (2021) is fixedly connected to the end of the threaded sleeve (209) away from the heat dissipation frame (201). The side ring (2021) abuts against the connecting cylinder (2010), and a filter screen (2022) is fixedly connected to the inner side of the side ring (2021).

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