CN213752846U

CN213752846U - Heat dissipation lithium battery protection board for dust collector

Info

Publication number: CN213752846U
Application number: CN202022957402.4U
Authority: CN
Inventors: 伍凤华
Original assignee: Shenzhen Huadayuan Technology Co ltd
Current assignee: Shenzhen Huadayuan Technology Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-07-20
Anticipated expiration: 2030-12-09

Abstract

The utility model belongs to the technical field of the lithium battery protection board, a heat dissipation lithium battery protection board for dust catcher is provided, including dust catcher casing and exhaust chamber and the installation cavity of setting in the dust catcher casing, the exhaust chamber passes through division board and installation cavity phase separation, fixed mounting has the protection shield in the installation cavity, and fixed mounting has the protective housing on the lithium cell, and fixed mounting has the fin on the protective housing, the inlet port has been seted up to the position that division board is relative with the fin, and detachably installs first dust screen on the inlet port, the venthole has been seted up on the dust catcher casing, and detachably installs the second dust screen on the venthole. The utility model discloses a heat dissipation lithium battery protection shield for dust catcher combines the self characteristic of dust catcher to dispel the heat to the protection shield, improves the radiating effect of protection shield.

Description

Heat dissipation lithium battery protection board for dust collector

Technical Field

The utility model relates to a lithium battery protection shield technical field, concretely relates to heat dissipation lithium battery protection shield for dust catcher.

Background

The battery protection board is an integrated circuit board which mainly plays a protection role for rechargeable (generally referred to as lithium batteries) and plays roles of overcharge, overdischarge, overcurrent, short circuit and ultrahigh-temperature charge and discharge. In order to meet the requirements of use, batteries are usually provided in the form of a battery pack, which is formed by connecting individual battery cells in series or in parallel, and is used together with a battery protection board.

The structure of the dust collector is provided with an air inlet, a dust collection box, an air exhaust cavity and an installation cavity, air with dust enters the dust collection box through the air inlet to be filtered, the filtered air is exhausted to the outside of the dust collector through the air exhaust cavity, and the installation cavity is used for installing power supply equipment.

In the dust catcher use, lithium cell protection shield can produce the heat, and the performance of lithium cell and lithium cell protection shield can be influenced in thermal accumulation, and the self characteristic that current lithium cell protection shield for the dust catcher's heat radiation structure does not fully combine the dust catcher dispels the heat to lithium cell protection shield, causes the waste of resource.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a pair of heat dissipation lithium battery protection shield for dust catcher combines the self characteristic of dust catcher to dispel the heat to the protection shield, improves the radiating effect of protection shield.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a heat dissipation lithium battery protection shield for dust catcher, includes dust catcher casing and exhaust chamber and the installation cavity of setting in the dust catcher casing, the exhaust chamber passes through division board and installation cavity phase separation, fixed mounting has the protection shield in the installation cavity, and fixed mounting has the protective housing on the lithium cell, and fixed mounting has the fin on the protective housing, the inlet port has been seted up to division board and the relative position of fin, and detachably installs first dust screen on the inlet port, seted up the venthole on the dust catcher casing, detachably installs the second dust screen on the venthole.

Further, the protective housing is U-shaped, and the both ends of protective housing are all fixed mounting have the stopper, and the upper surface at protection shield both sides edge passes through heat conduction silicone grease and stopper fixed connection, the lower surface at protection shield both sides edge passes through the both ends fixed connection of heat conduction silicone grease and protective housing.

Furthermore, the protective shell is fixedly connected with the end face of one side, close to the dust collector shell, of the dust collector shell through heat-conducting silicone grease.

Furthermore, a temperature sensor is fixedly installed at a position where the partition plate corresponds to the radiating fin, circular grooves are formed in the side walls of the air inlet hole and the air outlet hole, a shielding plate and a driving motor used for driving the shielding plate to rotate are arranged in the circular grooves, the driving motor is fixedly connected with the side walls of the circular grooves, and the driving motor and the temperature sensor are electrically connected with the microcontroller.

Furthermore, a sealing ring is fixedly mounted on the shielding plate and is in contact with the side wall of the circular groove.

Furthermore, first draw-in grooves have been seted up symmetrically on the inlet port, the second draw-in groove has been seted up symmetrically on the venthole, first V type card has been seted up symmetrically at the edge of first dust screen, second V type card has been seted up symmetrically at the edge of first dust screen, first V type card and first draw-in groove joint, second V type card and second draw-in groove joint.

According to the above technical scheme, the beneficial effects of the utility model are that: the protective shell is fixedly arranged on the protective plate, the radiating fins are arranged on the protective shell and conduct heat generated by the protective plate to the air through the radiating fins, meanwhile, cold air filtered in the exhaust cavity enters the mounting cavity through the air inlet, the heat in the radiating fins and the mounting cavity is taken away by blowing of the air and is exhausted from the air outlet, the protective plate is radiated by combining the self characteristic of the dust collector, and the radiating effect of the protective plate is improved; in addition, the arrangement of first dust screen and second dust screen can block dust and get into the installation cavity to play the effect of protection lithium cell and protection shield.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged view of the utility model at A;

fig. 3 is an enlarged view of the position B of the present invention.

Reference numerals:

1-a vacuum cleaner housing; 2-a venting cavity; 3-installing a cavity; 4-a partition plate; 5-circular groove; 6-a shielding plate; 7-driving a motor;

11-air outlet holes; 12-a second card slot; 13-a second dust screen; 14-second V-card; 31-a lithium battery; 32-protective plate; 33-protective shell; 34-a heat sink; 35-heat-conducting silicone grease; 36-a temperature sensor; 41-air intake; 42-a first card slot; 43-a first dust screen; 44-first V-card; 61-sealing ring;

331-a limiting block.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to fig. 3, the heat dissipation lithium battery protection plate for a dust collector provided by this embodiment includes a dust collector housing 1, and an air exhaust cavity 2 and an installation cavity 3 which are arranged in the dust collector housing 1, the air exhaust cavity 2 is separated from the installation cavity 3 by a partition plate 4, a lithium battery 31 is fixedly installed in the installation cavity 3, a protection plate 32 is fixedly installed on the lithium battery 31, a protection shell 33 is fixedly installed on the protection plate 32, a heat sink 34 is fixedly installed on the protection shell 33, an air inlet 41 is opened at a position of the partition plate 4 opposite to the heat sink 34, a first dust screen 43 is detachably installed on the air inlet 41, an air outlet 11 is opened on the dust collector housing 1, and a second dust screen 13 is detachably installed on the air.

In practical use, the protective shell 33 is fixedly mounted on the protective plate 32, the radiating fins 34 mounted on the protective shell 33 conduct heat generated by the protective plate 32 to air through the radiating fins 34, meanwhile, cold air filtered in the exhaust cavity 2 enters the mounting cavity 3 through the air inlet holes 41, the heat in the radiating fins 34 and the mounting cavity 3 is taken away by blowing of the air and is exhausted from the air outlet holes 11, the protective plate 32 is radiated by combining the self characteristic of the dust collector, and the radiating effect of the protective plate 32 is improved; in addition, the first dust screen 43 and the second dust screen 13 are arranged to block dust from entering the installation cavity 3, thereby protecting the lithium battery 31 and the protection plate 32.

In this embodiment, the protection shell 33 is U-shaped, the two ends of the protection shell 33 are both fixedly mounted with the limit blocks 331, the upper surfaces of the two side edges of the protection plate 32 are fixedly connected with the limit blocks 331 through the heat-conducting silicone grease 35, the lower surfaces of the two side edges of the protection plate 32 are fixedly connected with the two ends of the protection shell 33 through the heat-conducting silicone grease 35, and the protection shell 33 is made of metal material and is convenient for heat transfer.

In practical use, the protection plate 32 transmits the generated heat to the protection shell 33 through the heat-conducting silicone grease 35, and a certain gap is left between the middle area of the protection shell 33 and the middle area of the protection plate 32, so that the protection plate 32 can be conveniently contacted with cold air to exchange heat.

In this embodiment, the protective shell 33 is fixedly connected to the end surface of the cleaner housing 1 close to one side thereof through the heat conductive silicone grease 35, so that heat on the protective shell 33 can be transferred to the housing through the heat conductive silicone grease 35.

In this embodiment, division board 4 has temperature sensor 36 with the fixed position that fin 34 corresponds, has all seted up circular recess 5 on the lateral wall of inlet port 41 and venthole 11, is equipped with shielding plate 6 in the circular recess 5 and is used for driving shielding plate 6 pivoted driving motor 7, driving motor 7 and circular recess 5's lateral wall fixed connection, driving motor 7 and temperature sensor 36 all are connected with microcontroller electricity, and microcontroller is the STM32 singlechip.

In practical use, when the temperature sensor 36 detects that the temperature in the installation cavity 3 is higher than a set temperature value, the microcontroller controls the driving motor 7 to work to drive the shielding plate 6 to rotate, so that the air inlet 41 and the air outlet 11 are opened, and cold air in the exhaust cavity 2 enters the installation cavity 3 to dissipate heat of the protective plate 32 and the lithium battery 31; when the temperature sensor 36 detects that the temperature in the installation cavity 3 is lower than a set temperature value, the microcontroller controls the driving motor 7 to work to drive the shielding plate 6 to rotate in the opposite direction, so that the air inlet hole 41 and the air outlet hole 11 are shielded, and dust is prevented from entering the installation cavity 3 when the installation cavity is placed for a long time.

In this embodiment, the shielding plate 6 is fixedly provided with the sealing ring 61, the sealing ring 61 contacts with the side wall of the circular groove 5, and when the shielding plate 6 shields the air outlet hole 11 or the air inlet hole 41, dust is reduced from entering the installation cavity 3 from a gap between the shielding plate 6 and the side wall of the circular groove 5.

In this embodiment, the air inlet 41 is symmetrically provided with a first clamping groove 42, the air outlet 11 is symmetrically provided with a second clamping groove 12, the edge of the first dust screen 43 is symmetrically provided with a first V-shaped clamping piece 44, the edge of the first dust screen 43 is symmetrically provided with a second V-shaped clamping piece 14, the first V-shaped clamping piece 44 is clamped with the first clamping groove 42, and the second V-shaped clamping piece 14 is clamped with the second clamping groove 12.

In practical use, the first V-shaped card 44 is placed in the first clamping groove 42 and clamped with the first clamping groove 42, so that the first dust screen 43 and the air inlet 41 are installed, and conversely, the end part of the first V-shaped card 44 is far away from the first clamping groove 42 by pressing the first V-shaped card 44 towards the first dust screen 43 side, so that the first dust screen 43 is detached; the second V-shaped card 14 is placed in the second card slot 12 and is clamped with the second card slot 12, so that the second dust screen 13 and the air outlet hole 11 are installed, and conversely, the end part of the second V-shaped card 14 is far away from the second card slot 12 by pressing the second V-shaped card 14 to the side of the second dust screen 13, so that the second dust screen 13 is detached.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a heat dissipation lithium cell protection shield for dust catcher, includes dust catcher casing (1) and sets up exhaust chamber (2) and installation cavity (3) in dust catcher casing (1), its characterized in that: exhaust chamber (2) are through division board (4) and installation cavity (3) phase separation, fixed mounting lithium cell (31) in installation cavity (3), fixed mounting has protection shield (32) on lithium cell (31), and fixed mounting has protective housing (33) on protection shield (32), and fixed mounting has fin (34) on protective housing (33), inlet port (41) have been seted up to division board (4) and fin (34) relative position, and detachably installs first dust screen (43) on inlet port (41), venthole (11) have been seted up on dust catcher casing (1), and second dust screen (13) are installed to detachably on venthole (11).

2. The heat-dissipating lithium battery protection sheet for a vacuum cleaner as claimed in claim 1, wherein: the protective housing (33) is U-shaped, and the both ends of protective housing (33) are all fixed mounting and are had stopper (331), and the upper surface at protection shield (32) both sides edge passes through heat conduction silicone grease (35) and stopper (331) fixed connection, the both ends fixed connection of protection shield (32) both sides edge passes through heat conduction silicone grease (35) and protective housing (33) is passed through to the lower surface at protection shield (32) both sides edge.

3. The heat-dissipating lithium battery protection plate for a vacuum cleaner as claimed in claim 2, wherein: the protective shell (33) is fixedly connected with one side end face, close to the dust collector shell (1), through heat-conducting silicone grease (35).

4. The heat-dissipating lithium battery protection sheet for a vacuum cleaner as claimed in claim 1, wherein: division board (4) and the position fixed mounting that fin (34) correspond have temperature sensor (36), circular recess (5) have all been seted up on the lateral wall of inlet port (41) and venthole (11), be equipped with in circular recess (5) shielding plate (6) and be used for driving shielding plate (6) pivoted driving motor (7), driving motor (7) and the lateral wall fixed connection of circular recess (5), driving motor (7) and temperature sensor (36) all are connected with the microcontroller electricity.

5. The heat-dissipating lithium battery protection plate for a vacuum cleaner as claimed in claim 4, wherein: a sealing ring (61) is fixedly mounted on the shielding plate (6), and the sealing ring (61) is in contact with the side wall of the circular groove (5).

6. The heat-dissipating lithium battery protection sheet for a vacuum cleaner as claimed in claim 1, wherein: first draw-in groove (42) have been seted up symmetrically on inlet port (41), second draw-in groove (12) have been seted up symmetrically on venthole (11), first V type card (44) have been seted up symmetrically at the edge of first dust screen (43), second V type card (14) have been seted up symmetrically at the edge of first dust screen (43), first V type card (44) and first draw-in groove (42) joint, second V type card (14) and second draw-in groove (12) joint.