CN211957551U - Vehicle relay box and vehicle - Google Patents
Vehicle relay box and vehicle Download PDFInfo
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- CN211957551U CN211957551U CN202020584242.0U CN202020584242U CN211957551U CN 211957551 U CN211957551 U CN 211957551U CN 202020584242 U CN202020584242 U CN 202020584242U CN 211957551 U CN211957551 U CN 211957551U
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Abstract
The utility model discloses an automobile-used relay box and vehicle, this automobile-used relay box include box body, a plurality of positive pole interface, a plurality of negative pole interface and a plurality of relay unit. The positive electrode interfaces, the negative electrode interfaces and the relay units are all arranged on the box body, the plurality of relay units correspond to the plurality of positive electrode interfaces and the plurality of negative electrode interfaces one to one, and each relay unit is connected with the electric equipment and an external power supply through the corresponding positive electrode interface and the corresponding negative electrode interface; the relay unit comprises a switch tube and a voltage division circuit, a first pole and a second pole of the switch tube are connected with a corresponding negative pole interface and a corresponding positive pole interface respectively, a first end of the voltage division circuit is connected with a negative pole of a preset power source, a second end of the voltage division circuit is connected with a positive pole of the preset power source and a second pole of the switch tube respectively, and a third end of the voltage division circuit is connected with a control pole of the switch tube. Therefore, the vehicular relay box can reduce the occupied volume of the relay unit, and improve the working efficiency, sensitivity and service life of the relay unit.
Description
Technical Field
The utility model relates to a vehicle field especially relates to an automobile-used relay unit, a vehicle.
Background
With the rapid development of automotive electronics, the electronic devices on automobiles are rapidly increased, and therefore, the number of relays on automobiles is also increased, and an automobile relay box is generally arranged in a front cabin and a cockpit, and is generally equipped with more than ten relays therein. At present, most of the relays assembled in the relay box are mechanical relays, are used for controlling heavy current loads, have the characteristics of low cost and strong fault resistance, and are suitable for complex and harsh power utilization environments on automobiles.
However, mechanical relays have inherent disadvantages, mainly: the mechanical relay is relatively large in size because the mechanical relay attracts the contact through the magnetic force of the electrified coil; the mechanical control reaction is slow; the return elastic sheet in the mechanical relay is easy to oxidize, the elasticity can be weakened after repeated use, and the service life is short.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent.
Therefore, the utility model discloses a first aim at provides a vehicle relay box to reduce the volume of relay unit, improve the work efficiency, sensitivity and the life of relay unit simultaneously.
A second object of the present invention is to provide a vehicle.
In order to achieve the above object, the utility model provides a vehicle relay box, vehicle relay unit includes: a box body; the positive interfaces and the negative interfaces are arranged on the box body, and the positive interfaces and the negative interfaces are in one-to-one correspondence; a plurality of relay units, a plurality of relay units are installed on the box body, a plurality of relay units with a plurality of positive interfaces a plurality of negative pole interface one-to-one, every the relay unit is connected with series connection's consumer and external power source electricity through positive interface, negative pole interface that correspond, the relay unit includes switch tube, bleeder circuit, wherein, the first utmost point of switch tube is connected with the negative pole interface electricity that corresponds, the second pole of switch tube is connected with the positive interface electricity that corresponds, bleeder circuit's first end is connected with the negative pole electricity of predetermineeing the power, bleeder circuit's second end respectively with predetermine the positive pole of power the second pole electricity of switch tube is connected, bleeder circuit's third end with the control pole electricity of switch tube is connected.
According to the utility model discloses a relay box for vehicle, install a plurality of relay units on the box body, and with a plurality of positive pole interfaces and a plurality of negative pole interfaces on the box body one-to-one connection, rethread positive pole interface and negative pole interface and consumer and external power source carry out the electricity to be connected; wherein, the relay unit includes switch tube and bleeder circuit, and the first utmost point and the second pole of switch tube correspond the electricity in negative pole interface and positive pole interface respectively and are connected, bleeder circuit's first end and the negative pole electric connection of predetermineeing the power, bleeder circuit's second end respectively with predetermine the anodal of power, the second pole electricity of switch tube is connected, bleeder circuit's third end and the control pole electric connection of switch tube to can come to control the consumer of vehicle through control relay unit. From this, this automobile-used relay box can significantly reduce the occupation volume of relay unit, improves relay unit's work efficiency, sensitivity and life simultaneously.
Additionally, the utility model discloses an automobile-used relay unit can also have following additional technical characterstic:
in some examples, the voltage divider circuit includes a sliding rheostat, a first fixed terminal of the sliding rheostat is electrically connected with a first pole of the preset power source, a second fixed terminal of the sliding rheostat is electrically connected with a second pole of the preset power source and a second pole of the switching tube, respectively, and a sliding terminal of the sliding rheostat is electrically connected with a control pole of the switching tube.
In some examples, the relay unit further includes a first capacitor connected in parallel with the preset power source.
In some examples, the relay unit further includes a second capacitor having one end electrically connected to the control electrode of the switching tube and the other end electrically connected to the second pole of the switching tube.
In some examples, the vehicle relay box further includes a plurality of fuses mounted on the box body, the plurality of fuses corresponding to the plurality of relay units one to one, the fuses being connected between first poles and positive pole interfaces of corresponding switching tubes, or between second poles and negative pole interfaces of corresponding switching tubes.
In some examples, the vehicle relay box further includes a plurality of sampling resistors, the sampling resistors are mounted on the box body, the sampling resistors correspond to the fuses one to one, and the sampling resistors are connected in series with the corresponding fuses to sample current of the corresponding electric devices to obtain corresponding sampling currents.
In some examples, the vehicle relay box further comprises a control unit, the control unit is mounted on the box body, and the control unit is electrically connected with each sampling resistor respectively and used for realizing current detection of corresponding electric equipment according to each sampling current.
In some examples, the switching tube is a Metal-Oxide-Semiconductor (MOS) tube, a first pole of the switching tube is a drain electrode of the MOS tube, a second pole of the switching tube is a source electrode of the MOS tube, a control pole of the switching tube is a gate electrode of the MOS tube, and the MOS tube is correspondingly provided with a back-emf absorbing diode.
In some examples, the maximum resistance of the sliding varistor is 50K Ω, the capacitance of the first capacitor is 2 μ F, and the capacitance of the second capacitor is 3 μ F.
To achieve the above object, a second object of the present invention is to provide a vehicle including the vehicular relay box in the above example.
According to the utility model discloses a vehicle, through the automobile-used relay unit in the above-mentioned example, the volume that occupies of automobile-used relay unit that can significantly reduce increases vehicle air conditioner, improves the life of vehicle control sensitivity and vehicle simultaneously.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
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 diagram of a relay box for a vehicle according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a relay unit according to an embodiment of the present invention;
fig. 3 is a block diagram of a relay box for a vehicle according to another embodiment of the present invention;
fig. 4 is a block diagram of a relay box for a vehicle according to still another embodiment of the present invention;
fig. 5 is a block diagram of a vehicle according to an 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 following describes a vehicle relay box and a vehicle according to an embodiment of the present invention with reference to the drawings.
Fig. 1 is a block diagram of a relay box for a vehicle according to an embodiment of the present invention.
As shown in fig. 1, the relay box 100 for a vehicle includes: box body 10, a plurality of positive pole interface, a plurality of negative pole interface and a plurality of relay unit.
Optionally, referring to fig. 1, the plurality of negative interfaces are respectively a negative interface 301, a negative interface 302, …, and a negative interface 30n, the plurality of positive interfaces are respectively a positive interface 401, a positive interface 402, …, and a positive interface 40n, and the plurality of relay units are respectively a relay unit 201, a relay unit 202, …, and a relay unit 20 n.
The plurality of positive interfaces and the plurality of negative interfaces are all arranged on the box body 10, and the plurality of positive interfaces and the plurality of negative interfaces are in one-to-one correspondence, that is, the positive interface 401 corresponds to the negative interface 301, the positive interface 402 corresponds to the negative interface 302, and so on, the positive interface 40n corresponds to the negative interface 30 n. The plurality of relay units are also installed on the box body 10, and the plurality of relay units respectively correspond to the plurality of positive interfaces and the plurality of negative interfaces in significance, namely the relay unit 201 is correspondingly connected with the positive interface 401 and the negative interface 301, the relay unit 202 is correspondingly connected with the positive interface 402 and the negative interface 302, and so on, the relay unit 20n is correspondingly connected with the positive interface 40n and the negative interface 30n, and each relay unit is electrically connected with the electric equipment and the external power supply which are connected in series through the corresponding positive interface and the corresponding negative interface.
In this embodiment, referring to fig. 2, the relay unit includes a switching tube and a voltage dividing circuit. In the following description, the relay unit 201 is taken as an example for description, and the relay units 201 of other relay units have the same structure, and thus the description thereof is omitted.
In the relay unit 201, a first pole D of a switch tube 2010 is electrically connected to a corresponding negative electrode interface 301, a second pole S of the switch tube is electrically connected to a corresponding positive electrode interface 401, a first end of a voltage division circuit 2011 is electrically connected to a negative electrode of a preset power source, a second end of the voltage division circuit 2011 is electrically connected to a positive electrode of the preset power source and the second pole S of the switch tube, respectively, and a third end of the voltage division circuit 2011 is electrically connected to a control electrode G of the switch tube. The voltage dividing circuit is arranged to divide the voltage of the input signal (i.e., the preset power supply) so that the switching tube in the relay unit 201 can work normally.
In some examples of the present invention, as shown in fig. 1, the voltage dividing circuit 2011 includes a sliding rheostat, a first fixed terminal of the sliding rheostat is electrically connected to a first pole of the preset power source 2012, a second fixed terminal of the sliding rheostat is electrically connected to a second pole of the preset power source 2012 and a second pole S of the switch tube 2010, and a sliding terminal of the sliding rheostat is electrically connected to the control pole G of the switch tube.
Specifically, because the power consumption parameters of different electric devices are different, when different electric devices are controlled, the required starting voltage of the switching tube 2010 is also different, in this example, the sliding rheostat is arranged to divide the voltage of the switching tube 2010 through the sliding binding post, so as to adjust the voltage input to the switching tube 2010, so that the relay unit 201 can work normally, and the electric devices correspondingly connected with the relay unit are controlled accurately.
In some examples of the present invention, as shown in fig. 2, the relay unit 201 further includes a first capacitor C1, and the first capacitor C1 is connected in parallel with the preset power source 2012.
Specifically, set up first electric capacity C1 and preset power 2012 parallel connection, to presetting power 2012 and carry out the filtering action, first electric capacity C1 has the charge-discharge effect, and when presetting power 2012 and fluctuate, the charge-discharge of first electric capacity C1 can filter it, reduces the fluctuation of presetting power 2012, guarantees the stability of voltage to guarantee that the relay unit can reliably work.
In some examples of the present invention, as shown in fig. 2, the relay unit further includes a second capacitor C2, one end of the second capacitor C2 is electrically connected to the control electrode G of the switch tube 2010, and the other end of the second capacitor C2 is electrically connected to the second electrode S of the switch tube 2010. Therefore, the reliability of the operation of the switching tube 2010 can be further ensured by the arrangement of the second capacitor C2.
Optionally, the maximum resistance value of the sliding varistor is 50K Ω, the capacitance of the first capacitor is 2 μ F, and the capacitance of the second capacitor is 3 μ F.
Fig. 3 is a block diagram of a relay box for a vehicle according to another embodiment of the present invention.
In some examples of the present invention, as shown in fig. 3, the vehicle relay box 100 further includes a plurality of fuses, the plurality of fuses are installed on the box body, the plurality of fuses correspond to the plurality of relay units one-to-one, and the fuses are connected between the first poles and the positive interfaces of the corresponding switch tubes, or connected between the second poles and the negative interfaces of the corresponding switch tubes.
Taking the relay unit 201 as an example, in the relay unit 201, the fuse 2013 is provided between the first pole D and the positive electrode interface of the switching tube 2010 of the relay unit 201, but of course, the fuse 2013 may be provided between the second pole S and the negative electrode interface of the switching tube 2010. Be connected with the consumer and the external power source of series connection between positive pole interface and negative pole interface, when consumer takes place the short circuit or other trouble, even the fuse can fuse to protect the relay unit, improve the life of relay unit, and even protect the safety of other consumers and devices.
In some examples of the utility model, as shown in fig. 3, the vehicle relay box 100 further includes a plurality of sampling resistors, and a plurality of sampling resistors are installed on the box body, a plurality of sampling resistors and a plurality of fuses one-to-one, and sampling resistors and the fuse series connection who corresponds for carry out the current sampling to the consumer that corresponds, in order to obtain corresponding sampling current.
Specifically, still taking the relay unit 201 as an example, in the relay unit 201, the sampling resistor 2014 is arranged to correspond to the fuse 2013 in a series connection manner, the sampling resistor 2014 can sample the current of the electric device, and when the electric device is in the working state, the sampling resistor 2014 samples the working current of the electric device, so that the current condition of the electric device in the working state is monitored, and when the electric device is abnormal, the corresponding relay unit can react to protect the electric device.
Alternatively, the frequency of sampling the current of the powered device may be set by the user, such as sampling every 3 seconds, sampling every 10 milliseconds, and so on.
In some examples of the present invention, as shown in fig. 3, the vehicle relay box 100 further includes a control unit 20, the control unit 20 is installed on the box body, and the control unit 20 is electrically connected to each sampling resistor respectively, so as to realize current detection of the corresponding electric device according to each sampling current.
Specifically, the control unit 20 is electrically connected to each sampling resistor (a connection line is not labeled in fig. 3), after the sampling resistor samples the current of the electric device, the control unit 20 electrically connected to the sampling resistor can detect the current of the electric device according to the sampling current, and monitor the operating state of the electric device, and if the electric device is abnormal, the control unit can send a control instruction to the corresponding relay unit, such as to control the switch tube to be disconnected, so as to disconnect the loop where the electric device is located, thereby ensuring the safety of the electric device, and fully prolonging the service life of the point-of-use device.
Alternatively, the control unit may be a micro control unit, such as an 8-bit chip, a 16-bit chip, or the like, and the management capability may be expanded through the control unit.
Fig. 4 is a block diagram of a relay box for a vehicle according to still another embodiment of the present invention.
In some examples of the present invention, as shown in fig. 4, the switch tube is an MOS tube, the first terminal of the switch tube is a drain electrode of the MOS tube, the second terminal of the switch tube is a source electrode of the MOS tube, the control terminal of the switch tube is a gate electrode of the MOS tube, and the MOS tube is correspondingly provided with a back-emf absorption diode D1.
Specifically, referring to fig. 4, a back electromotive force absorbing diode D1 is disposed between the drain and the source of the MOS transistor, and if a back electromotive force occurs between the drain and the source during the operation of the MOS transistor, the MOS transistor is easily burned out, and thus the relay unit cannot normally operate when the back electromotive force is reached, this example absorbs the back electromotive force passing between the drain and the source by disposing a back electromotive force absorbing diode D1, so that the MOS transistor can normally operate, and it is also possible to improve the response speed of the MOS transistor and reduce the current impact.
To sum up, the utility model discloses an automobile-used relay box installs a plurality of relay units on the box body, wherein, the relay unit has included MOS pipe and bleeder circuit, a plurality of positive negative pole interfaces of rethread are connected with consumer and external power supply electricity, and through setting up fuse and sampling resistance, thereby can be when passing through relay unit control consumer, carry out current detection and fuse fusing diagnosis to the consumer, improve consumer's safety in utilization, the volume that occupies of relay unit can be reduced simultaneously, and improve relay unit's work efficiency, sensitivity and life.
Fig. 5 is a block diagram of a vehicle according to an embodiment of the present invention.
Further, the present invention also provides a vehicle 1000, as shown in fig. 5, the vehicle 1000 includes the vehicular relay box 100 in the above embodiment.
According to the utility model discloses a vehicle, through the automobile-used relay box in the above-mentioned embodiment, the automobile-used relay unit that can significantly reduce occupies the volume in the vehicle, increases vehicle air conditioner, improves the life of vehicle control sensitivity and vehicle simultaneously.
In addition, other configurations and functions of the vehicle according to the embodiment of the present invention are known to those skilled in the art, and are not described herein for reducing redundancy.
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 do not necessarily 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. 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.
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 relay box for a vehicle, comprising:
a box body;
the positive interfaces and the negative interfaces are arranged on the box body, and the positive interfaces and the negative interfaces are in one-to-one correspondence;
a plurality of relay units, the plurality of relay units are arranged on the box body, the plurality of relay units are in one-to-one correspondence with the plurality of positive electrode interfaces and the plurality of negative electrode interfaces, each relay unit is electrically connected with electric equipment and an external power supply which are connected in series through the corresponding positive electrode interface and the corresponding negative electrode interface, the relay unit comprises a switch tube and a voltage division circuit, wherein,
the first pole of the switch tube is electrically connected with the corresponding negative electrode interface, the second pole of the switch tube is electrically connected with the corresponding positive electrode interface,
the first end of the voltage division circuit is electrically connected with the negative electrode of a preset power supply, the second end of the voltage division circuit is electrically connected with the positive electrode of the preset power supply and the second electrode of the switch tube respectively, and the third end of the voltage division circuit is electrically connected with the control electrode of the switch tube.
2. The relay box for a vehicle according to claim 1, wherein the voltage dividing circuit comprises:
the first fixed binding post of the slide rheostat is electrically connected with the first pole of the preset power supply, the second fixed binding post of the slide rheostat is electrically connected with the second pole of the preset power supply and the second pole of the switch tube respectively, and the slide binding post of the slide rheostat is electrically connected with the control pole of the switch tube.
3. The relay box for a vehicle according to claim 2, wherein the relay unit further comprises:
the first capacitor is connected with the preset power supply in parallel.
4. The relay box for a vehicle according to claim 3, wherein the relay unit further comprises:
and one end of the second capacitor is electrically connected with the control electrode of the switch tube, and the other end of the second capacitor is electrically connected with the second pole of the switch tube.
5. The vehicle relay box as claimed in claim 1, further comprising:
the fuse protector comprises a box body, a plurality of fuses are installed on the box body, the fuses correspond to the relay units one to one, and the fuses are connected between first poles and positive pole interfaces of corresponding switch tubes or between second poles and negative pole interfaces of corresponding switch tubes.
6. The vehicle relay box as claimed in claim 5, further comprising:
a plurality of sampling resistance, a plurality of sampling resistance install on the box body, a plurality of sampling resistance with a plurality of fuses one-to-one, sampling resistance and the fuse series connection that corresponds for carry out the current sampling to the consumer that corresponds, in order to obtain corresponding sampling current.
7. The vehicle relay box as claimed in claim 6, further comprising:
and the control unit is installed on the box body and is respectively electrically connected with each sampling resistor and used for realizing current detection on corresponding electric equipment according to each sampling current.
8. The vehicle relay box according to claim 1, wherein the switching tube is an MOS tube, the first pole of the switching tube is a drain electrode of the MOS tube, the second pole of the switching tube is a source electrode of the MOS tube, the control electrode of the switching tube is a gate electrode of the MOS tube, and the MOS tube is correspondingly provided with a back-potential absorption diode.
9. The relay box as claimed in claim 4, wherein the maximum resistance value of the sliding resistor is 50K Ω, the capacity of the first capacitor is 2 μ F, and the capacity of the second capacitor is 3 μ F.
10. A vehicle characterized by comprising the vehicular relay box according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020584242.0U CN211957551U (en) | 2020-04-17 | 2020-04-17 | Vehicle relay box and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020584242.0U CN211957551U (en) | 2020-04-17 | 2020-04-17 | Vehicle relay box and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN211957551U true CN211957551U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020584242.0U Active CN211957551U (en) | 2020-04-17 | 2020-04-17 | Vehicle relay box and vehicle |
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| CN (1) | CN211957551U (en) |
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2020
- 2020-04-17 CN CN202020584242.0U patent/CN211957551U/en active Active
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