CN211507555U - Fuse protector, battery system and electric automobile - Google Patents
Fuse protector, battery system and electric automobile Download PDFInfo
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- CN211507555U CN211507555U CN202020172929.3U CN202020172929U CN211507555U CN 211507555 U CN211507555 U CN 211507555U CN 202020172929 U CN202020172929 U CN 202020172929U CN 211507555 U CN211507555 U CN 211507555U
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- fuse
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- temperature
- protection device
- heat dissipation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a protection device, battery system and electric automobile of fuse, wherein, the protection device of fuse includes: the temperature detection assembly is arranged on the surface of the fuse and used for detecting the temperature of the fuse; the heat dissipation assembly is arranged close to the fuse; the controllable switch component is connected with the heat dissipation component in series and then connected with the fuse in parallel; and the processing assembly is respectively connected with the temperature detection assembly and the controllable switch assembly and used for controlling the on-off of the controllable switch assembly according to the temperature of the fuse so as to control whether the heat dissipation assembly works or not. This protection device can carry out the heat dissipation processing to the fuse when the temperature of fuse is higher through setting up radiator unit to can effectively reduce because the fuse works under the high temperature condition for a long time and the heat damage that leads to, not only can improve the life of fuse, can also promote the accuracy that the fuse moved.
Description
Technical Field
The utility model relates to an electrical system technical field, in particular to protection device, a battery system and an electric automobile of fuse.
Background
In order to improve the safety of the electrical system, fuses are provided in the power supply circuit, especially in the high voltage power supply circuit, for example, the battery power supply circuit in the electric automobile is often a high voltage circuit of more than 300V, and the high voltage circuit is accompanied by a high voltage direct current fuse to prevent the battery safety accident caused by the large current caused by the short circuit due to the battery failure.
When the fuse is in emergency acceleration, mountainous terrain and other conditions, the current of the battery power supply loop may become larger instantly, the temperature of the fuse is increased due to the increase of the current, the fuse is continuously heated due to the fact that the power supply loop flows through large current, the fuse is easy to generate thermal damage after long-term operation at high temperature, the service life of the fuse is influenced, the fuse wire of the fuse is influenced, the misoperation probability is increased, and meanwhile the failure probability of abnormal fusing is increased.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, the utility model discloses a first aim at provides a protection device of fuse, and this protection device can carry out the heat dissipation through setting up radiator unit to the fuse when the temperature of fuse is higher and handle to can effectively reduce because the fuse works under the high temperature condition for a long time and the thermal damage that leads to, not only can improve the life of fuse, can also promote the accuracy that the fuse moved.
A second object of the present invention is to provide a battery system.
A third object of the present invention is to provide an electric vehicle.
In order to achieve the above object, the present invention provides, in a first aspect, a protection device for a fuse, including: the temperature detection assembly is arranged on the surface of the fuse and used for detecting the temperature of the fuse; a heat dissipating assembly disposed proximate to the fuse; the controllable switch assembly is connected with the heat dissipation assembly in series and then connected with the fuse in parallel; and the processing assembly is respectively connected with the temperature detection assembly and the controllable switch assembly and used for controlling the on or off of the controllable switch assembly according to the temperature of the fuse so as to control whether the heat dissipation assembly works or not.
According to the utility model discloses a protection device of fuse, through the temperature that sets up the temperature detection subassembly on the surface of fuse and detect the fuse, radiator unit is close to the fuse setting, and controllable switch module connects in parallel with the fuse after establishing ties with radiator unit, and the processing assembly is according to the closed or disconnection of the temperature control controllable switch module of fuse to whether control radiator unit carries out work. From this, this protection device can carry out the heat dissipation processing to the fuse when the temperature of fuse is higher through setting up radiator unit to can effectively reduce because the fuse works under the high temperature condition for a long time and the thermal damage that leads to, not only can improve the life of fuse, can also promote the accuracy that the fuse moved.
In addition, according to the present invention, the protection device of the fuse proposed above can also have the following additional technical features:
specifically, the protection device of the fuse further includes: the heat conduction silica gel, the heat conduction silica gel sets up the fuse with between the radiator unit.
Specifically, the controllable switch subassembly includes direct current relay, direct current relay includes coil and switch, the one end of coil with processing component links to each other, the other end ground connection of coil, the switch with heat radiation component connects in series after connect with the fuse is parallelly connected.
Specifically, the temperature detection assembly includes a thermistor.
Further, the thermistor includes a negative temperature coefficient thermistor.
Specifically, the heat dissipation assembly comprises a semiconductor refrigeration piece.
Specifically, the heat dissipation assembly includes a fan.
In particular, the processing component comprises a battery management system.
In order to achieve the above object, the second aspect of the present invention provides a battery system, which includes the protection device of the fuse according to an embodiment of the first aspect of the present invention.
According to the utility model discloses a battery system, through the protection device of foretell fuse, can carry out the heat dissipation through setting up radiator unit to the fuse when the temperature of fuse is higher and handle to can effectively reduce because the fuse works under the high temperature condition for a long time and the thermal damage that leads to, not only can improve the life of fuse, can also promote the accuracy of fuse action, provide the basis for battery system lasts high-efficient steady operation.
In order to achieve the above object, the third aspect of the present invention provides an electric vehicle, which includes the battery system according to the second aspect of the present invention.
The utility model discloses an electric automobile, through foretell battery system, can carry out the heat dissipation treatment to the fuse when the temperature of fuse is higher through setting up radiator unit to can effectively reduce because the fuse works under the high temperature condition for a long time and the thermal damage that leads to, not only can improve the life of fuse, can also promote the accuracy of fuse action, it provides the basis to last high-efficient steady operation for electric automobile's battery system.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which,
fig. 1 is a block schematic diagram of a protection device of a fuse according to an embodiment of the present invention;
fig. 2 is a block diagram of a protection device of a fuse according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The protection device of the fuse, the battery system, and the electric vehicle according to the embodiment of the present invention are described below with reference to the drawings.
Fig. 1 is a block diagram of a protection device of a fuse according to an embodiment of the present invention. As shown in fig. 1, the protection device includes: temperature detection subassembly 1, radiator unit 2, controllable switch subassembly 3 and processing assembly 4.
The temperature detection assembly 1 is arranged on the surface of the FUSE and is used for detecting the temperature of the FUSE; the heat dissipation assembly 2 is disposed near the FUSE to dissipate heat of the FUSE; the controllable switch component 3 is connected with the heat dissipation component 2 in series and then connected with the FUSE in parallel; the processing component 4 is respectively connected with the temperature detection component 1 and the controllable switch component 3, and is used for controlling the on/off of the controllable switch component 3 according to the temperature of the FUSE, so as to control whether the heat dissipation component 2 works or not.
The processing component 4 may comprise, among other things, a battery management system BMS.
Specifically, the FUSE is disposed in the power supply circuit, the present invention takes the high voltage power supply circuit disposed in the battery of the electric vehicle as an example, for example, in fig. 1, the FUSE is disposed in the middle of two batteries E1 and E2 connected in series in the battery pack, and the FUSE can FUSE the FUSE with the heat generated by itself when the battery power supply circuit is overloaded or short-circuited, so as to disconnect the power supply circuit.
The temperature of the FUSE is detected by the temperature detection component 1 arranged on the surface of the FUSE, and the temperature detection component is converted into a temperature signal which can be identified by the processing component 3, and the heat dissipation component 2 can dissipate heat of the FUSE when in work so as to reduce the temperature of the FUSE. When the controllable switch assembly 3 is closed, the heat dissipation assembly 2 works, and when the controllable switch assembly 3 is opened, the heat dissipation assembly 2 does not work. The processing component 3 may obtain a temperature signal of the temperature detection component 1, obtain a temperature of the FUSE according to the temperature signal, and then control the controllable switch component 3 to be turned on or off according to the temperature of the FUSE to control whether the heat dissipation component 2 operates, wherein if the temperature of the FUSE exceeds a first preset temperature T1 (e.g., 80 ℃), the processing component 3 controls the controllable switch component to be turned on to control the heat dissipation component 2 to operate, and performs heat dissipation treatment on the FUSE, and as the heat dissipation component 2 operates, the temperature of the surface of the FUSE gradually decreases, and when the temperature decreases to a first preset temperature T2 (e.g., 60 ℃), the processing component 3 controls the controllable switch component to be turned off to control the heat dissipation component 2 to stop operating. From this, can be with fuse temperature control in a reasonable temperature interval, make the fuse can work under suitable temperature, the side control radiator unit work when having the demand, effectively reduce because the fuse works under the high temperature condition for a long time and the thermal damage that leads to, not only can improve the life of fuse, can also promote the accuracy that the fuse moved, and can effectively reduce again to the power consumptive influence of battery.
In an embodiment of the present invention, the protection device of the fuse may further include: and the heat-conducting silica gel is arranged between the FUSE and the heat dissipation assembly 2 so as to reduce the contact thermal resistance generated between the FUSE surface and the contact surface of the heat dissipation assembly 2, and simultaneously, the functions of moisture prevention, dust prevention, corrosion prevention, shock prevention and the like can be achieved.
According to the utility model discloses an embodiment, as shown in fig. 2, controllable switch module 3 can include direct current relay, and direct current relay includes coil L and switch K, and coil L's one end links to each other with processing module 4, and coil L's the other end ground connection is connected parallelly connected with FUSE after switch K establishes ties with heat-radiating component 2.
Specifically, the switch K is a normally open switch, if the temperature of the FUSE exceeds a first preset temperature T1 (for example, 80 ℃), the processing assembly 3 outputs high-voltage direct current to the coil L, the coil L is powered on, the switch K is closed, the heat dissipation assembly 2 is connected to the power supply circuit to operate, the FUSE is subjected to heat dissipation treatment, the temperature of the surface of the FUSE gradually decreases along with the operation of the heat dissipation assembly 2, when the temperature decreases to the first preset temperature T2 (for example, 60 ℃), the processing assembly 3 stops outputting high-voltage direct current to the coil L, the coil L is powered off, the switch K is opened, and the heat dissipation assembly 2 is powered off to stop operating. From this, can be with fuse temperature control in a reasonable temperature interval, make the fuse can work under suitable temperature, the side control radiator unit work when having the demand, effectively reduce because the fuse works under the high temperature condition for a long time and the thermal damage that leads to, not only can improve the life of fuse, can also promote the accuracy that the fuse moved, and can effectively reduce again to the power consumptive influence of battery.
In the embodiment of the present invention, the Temperature detecting assembly 1 may include a thermistor, which may be a Negative Temperature Coefficient thermistor, i.e., an NTC (Negative Temperature Coefficient) thermistor.
The heat dissipation assembly 2 may include a semiconductor cooling fin, and may also include a fan.
According to the utility model discloses a protection device of fuse, through the temperature that sets up the temperature detection subassembly on the surface of fuse and detect the fuse, radiator unit is close to the fuse setting, and controllable switch module connects in parallel with the fuse after establishing ties with radiator unit, and the processing assembly is according to the closed or disconnection of the temperature control controllable switch module of fuse to whether control radiator unit carries out work. From this, this protection device can carry out the heat dissipation processing to the fuse when the temperature of fuse is higher through setting up radiator unit to can effectively reduce because the fuse works under the high temperature condition for a long time and the thermal damage that leads to, not only can improve the life of fuse, can also promote the accuracy that the fuse moved.
Furthermore, the utility model also provides a battery system, its protection device who includes foretell fuse.
According to the utility model discloses a battery system, through the protection device of foretell fuse, can carry out the heat dissipation through setting up radiator unit to the fuse when the temperature of fuse is higher and handle to can effectively reduce because the fuse works under the high temperature condition for a long time and the thermal damage that leads to, not only can improve the life of fuse, can also promote the accuracy of fuse action, provide the basis for battery system lasts high-efficient steady operation.
The utility model also provides an electric automobile, it includes foretell battery system.
The utility model discloses an electric automobile, through foretell battery system, can carry out the heat dissipation treatment to the fuse when the temperature of fuse is higher through setting up radiator unit to can effectively reduce because the fuse works under the high temperature condition for a long time and the thermal damage that leads to, not only can improve the life of fuse, can also promote the accuracy of fuse action, it provides the basis to last high-efficient steady operation for electric automobile's battery system.
In the description of the present invention, it is to be understood that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A protection device for a fuse, comprising:
the temperature detection assembly is arranged on the surface of the fuse and used for detecting the temperature of the fuse;
a heat dissipating assembly disposed proximate to the fuse;
the controllable switch assembly is connected with the heat dissipation assembly in series and then connected with the fuse in parallel;
and the processing assembly is respectively connected with the temperature detection assembly and the controllable switch assembly and used for controlling the on or off of the controllable switch assembly according to the temperature of the fuse so as to control whether the heat dissipation assembly works or not.
2. The protection device for a fuse according to claim 1, further comprising: the heat conduction silica gel, the heat conduction silica gel sets up the fuse with between the radiator unit.
3. The protection device for a fuse according to claim 1, wherein said controllable switch assembly comprises a dc relay including a coil and a switch, one end of said coil being connected to said processing assembly and the other end of said coil being connected to ground, said switch being connected in series with said heat dissipating assembly and then connected in parallel with said fuse.
4. The protection device for a fuse according to claim 1, wherein said temperature sensing assembly includes a thermistor.
5. The protection device for a fuse according to claim 4, wherein said thermistor comprises a negative temperature coefficient thermistor.
6. The fuse protection device of claim 1, wherein the heat dissipation assembly comprises a semiconductor chilling plate.
7. The fuse protector of claim 1, wherein the heat sink assembly comprises a fan.
8. The protection device for a fuse of claim 1, wherein the processing component comprises a battery management system.
9. A battery system characterized by comprising a protection device of the fuse according to any one of claims 1 to 7.
10. An electric vehicle characterized by comprising the battery system according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020172929.3U CN211507555U (en) | 2020-02-12 | 2020-02-12 | Fuse protector, battery system and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020172929.3U CN211507555U (en) | 2020-02-12 | 2020-02-12 | Fuse protector, battery system and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211507555U true CN211507555U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020172929.3U Active CN211507555U (en) | 2020-02-12 | 2020-02-12 | Fuse protector, battery system and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211507555U (en) |
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2020
- 2020-02-12 CN CN202020172929.3U patent/CN211507555U/en active Active
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