CN212225836U - Processing circuit for respectively monitoring brake pad abrasion - Google Patents
Processing circuit for respectively monitoring brake pad abrasion Download PDFInfo
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- CN212225836U CN212225836U CN202021705943.1U CN202021705943U CN212225836U CN 212225836 U CN212225836 U CN 212225836U CN 202021705943 U CN202021705943 U CN 202021705943U CN 212225836 U CN212225836 U CN 212225836U
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Abstract
The embodiment of the utility model provides a processing circuit for monitoring brake block wearing and tearing respectively, processing circuit includes: a power supply or power plug; the brake pad wear monitoring device comprises at least one indicator, a first monitoring unit and a second monitoring unit, wherein each indicator is provided with an input end, a first output end and a second output end, the input end of the first indicator in the at least one indicator is connected with the positive pole of a power supply or a power supply plug, the first output end of the first indicator is connected with the first port of the first monitoring unit in the at least one monitoring unit, the second output end of the first indicator is connected with the second port of the first monitoring unit, and the monitoring unit is used for monitoring the wear of a brake pad; the electronic switch comprises at least one electronic switch corresponding to the indicator, each electronic switch is provided with a first input end, a second input end and an output end, the first input end of a first electronic switch in the at least one electronic switch is connected with the first output end of the first indicator, the second input end of the first electronic switch is connected with the second output end of the first indicator, and the output end of the first electronic switch is grounded.
Description
Technical Field
The utility model relates to the technical field of vehicles, especially, relate to trailer brake control safety alarm device, concretely relates to a processing circuit for monitoring brake block wearing and tearing respectively.
Background
Tractors are often combined with trailers to transport goods, and there is an inevitable wear of the brake pads or shoes during travel of the trailer. In realizing the utility model discloses the in-process of thinking, the utility model discloses the people finds to have following problem at least among the correlation technique: the existing trailer is not provided with a brake pad or brake block abrasion alarm device, so that the brake pad or brake block of the trailer cannot be replaced in time after being abraded, and potential safety hazards exist.
Disclosure of Invention
In view of this, the to-be-solved technical problem of the utility model is to provide a processing circuit for monitoring brake block wearing and tearing respectively, the brake block or the brake block wearing and tearing back of having solved current trailer, navigating mate or maintainer can't in time know, have the problem of potential safety hazard.
In order to solve the technical problem, an embodiment of the utility model provides a processing circuit for monitoring brake block wearing and tearing respectively, include: a power supply or power plug; at least one indicator, wherein each indicator in the at least one indicator has an input end, a first output end and a second output end, the input end of the first indicator in the at least one indicator is connected with the positive pole of the power supply or the power plug, the first output end of the first indicator is connected with the first port of the first monitoring unit in the at least one monitoring unit, the second output end of the first indicator is connected with the second port of the first monitoring unit, when the first port and the second port of the first monitoring unit are connected, only the first output end of the first indicator outputs current, when the first port and the second port of the first monitoring unit are disconnected, the first output end and the second output end of the first indicator both output current, and the at least one monitoring unit is in one-to-one correspondence with at least one brake pad, the at least one monitoring unit is used for monitoring the abrasion of the at least one brake pad; at least one electronic switch in one-to-one correspondence with the at least one indicator, wherein each electronic switch in the at least one electronic switch has a first input end, a second input end and an output end, the first input end of a first electronic switch in the at least one electronic switch is connected with the first output end of the first indicator, the second input end of the first electronic switch is connected with the second output end of the first indicator, the output end of the first electronic switch is grounded, when the first port and the second port of the first monitoring unit are connected, only the second input end of the first electronic switch inputs current, and when the first port and the second port of the first monitoring unit are disconnected, the first input end and the second input end of the first electronic switch both input current.
Optionally, each indicator of the at least one indicator comprises: the device comprises a first resistor, a second resistor and a third resistor, wherein one end of the first resistor is connected with the input end of an indicator, and the other end of the first resistor is connected with the first output end of the indicator; the second resistor, wherein one end of the second resistor is connected with the input end of the indicator; a first alarm, wherein one end of the first alarm is connected with the other end of the second resistor; the base electrode of the triode is connected with the other end of the first resistor, the collector electrode of the triode is connected with the other end of the first alarm, and the emitting electrode of the triode is connected with the second output end of the indicator; a third resistor, wherein the third resistor is disposed between the first resistor and the base of the triode.
Optionally, the first alarm is at least one of a buzzer, a light emitting diode, a speaker, and an indicator light.
Optionally, each of the at least one electronic switch comprises: one end of the wire is connected with the second input end of the electronic switch, and the other end of the wire is connected with the output end of the electronic switch; the anode of the first diode is connected with the first input end of the electronic switch; and one end of the fourth resistor is connected with the cathode of the first diode, and the other end of the fourth resistor is connected with the output end of the electronic switch.
Optionally, the processing circuit further comprises: a second alarm, wherein one end of the second alarm is connected to the positive pole of the power supply or power plug; a transistor, wherein a gate of the transistor is connected to a cathode of the first diode of each of the at least one electronic switch, a drain of the transistor is connected to the other end of the second alarm, and a source of the transistor is grounded.
Optionally, the second alarm is at least one of a buzzer, a light emitting diode, a speaker, and an indicator light.
Optionally, when power or power plug is power plug, power plug is used for transmitting the direct current electric energy of vehicle storage battery level to processing circuit, power plug has first pin and second pin, first pin is used for connecting the positive pole of vehicle storage battery, the second pin is used for connecting the negative pole of vehicle storage battery. The processing circuit further comprises: a first fuse, wherein the first fuse is disposed proximate to the first pin.
Optionally, the processing circuit further comprises: a second fuse, wherein the second fuse is disposed proximate to the second pin.
Optionally, the processing circuit further comprises: a second diode, wherein the second diode is disposed near an anode or cathode of the power source or power plug.
Optionally, the processing circuit further comprises: a housing for protecting the power source or power plug, the at least one indicator and the at least one electronic switch.
According to the utility model discloses an embodiment, after brake block or the brake block wearing and tearing of certain wheel of trailer to the predetermined proportion, should wear and tear and carry out independent warning to the processing circuit that brake block or the brake block of predetermined proportion correspond, remind navigating mate or maintainer in time to change brake block or brake block, can solve in the correlation technique at least partially behind certain brake block or the brake block wearing and tearing of trailer to the predetermined proportion, can't inform navigating mate or maintainer in time to change brake block or brake block, there is the problem of potential safety hazard, and consequently can realize reducing the technological effect of trailer incident.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification of the invention, illustrate exemplary embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic block diagram of a processing circuit for separately monitoring wear of brake pads according to an embodiment of the present invention.
Fig. 2A is a schematic diagram of a current flow direction when the monitoring unit is turned on according to an embodiment of the present invention.
Fig. 2B is a schematic diagram of a current flow when the monitoring unit opens according to an embodiment of the present invention.
Fig. 3 is a circuit structure diagram of an indicator according to an embodiment of the present invention.
Fig. 4 is a circuit structure diagram of an electronic switch according to an embodiment of the present invention.
Fig. 5 is a circuit structure diagram of a processing circuit for monitoring wear of brake pads respectively according to an embodiment of the present invention.
Fig. 6 is a circuit diagram of a processing circuit for separately monitoring the wear of the brake pads according to another embodiment of the present invention.
Fig. 7 is a circuit diagram of a processing circuit for separately monitoring the wear of brake pads according to another embodiment of the present invention.
Description of reference numerals:
1 power supply or power plug 2 indicator
3 electronic switch 4 second alarm
5 transistor 6 first fuse
7 second fuse 8 second diode
11 first pin 21 input
22 first output 23 second output
2-1 first indicator S monitoring unit
S1 first monitoring Unit S11 first Port
S12 first input of second port 31
32 second input terminal 33 output terminal
3-1 first electronic switch 24 first resistance
25 second resistor 26 first alarm
27 third resistor of transistor 28
34 conductor 35 first diode
36 second pin of fourth resistor 12
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the spirit of the present invention will be described in detail with reference to the accompanying drawings, and any person skilled in the art can change or modify the techniques taught by the present invention without departing from the spirit and scope of the present invention after understanding the embodiments of the present invention.
The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention. Additionally, the same or similar numbered elements/components used in the drawings and the embodiments are used to represent the same or similar parts.
As used herein, the terms "first," "second," …, etc. do not denote any order or sequential importance, nor are they used to limit the invention, but rather are used to distinguish one element from another or from another element or operation described in the same technical language.
With respect to directional terminology used herein, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology used is intended to be illustrative and is not intended to be limiting of the present teachings.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
As used herein, "and/or" includes any and all combinations of the described items.
References to "plurality" herein include "two" and "more than two"; reference to "multiple sets" herein includes "two sets" and "more than two sets".
As used herein, the terms "substantially", "about" and the like are used to modify any slight variation in quantity or error that does not alter the nature of the variation. Generally, the range of slight variations or errors modified by such terms may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments, or other values. It should be understood by those skilled in the art that the aforementioned values can be adjusted according to actual needs, and are not limited thereto.
Fig. 1 is a schematic block diagram of a processing circuit for separately monitoring wear of brake pads according to an embodiment of the present invention. Fig. 2A is a schematic diagram of a current flow direction when the monitoring unit is turned on according to an embodiment of the present invention. Fig. 2B is a schematic diagram of a current flow when the monitoring unit opens according to an embodiment of the present invention.
As shown in fig. 1, the processing circuit for separately monitoring the wear of the brake pads according to the embodiment may include: a power supply or power plug 1, at least one indicator 2 and at least one electronic switch 3.
In the embodiment of the present invention, the power supply or the power plug 1 may include two cases, i.e., an independent power supply and a power plug. If the power supply or the power plug 1 is a power plug, the power plug can be connected with an electric energy output port of the vehicle storage battery, so that the electric energy of the vehicle storage battery is directly utilized. If the power supply or power plug 1 is a stand-alone power supply, which is typically a dc power supply, the stand-alone power supply voltage may be 12V, 24V, 36V, etc. If the electric energy of the vehicle storage battery is directly used, an independent power supply does not need to be additionally arranged on the processing circuit, the voltage reduction processing is not additionally carried out, the energy consumption is saved, the installation is convenient, the existing vehicle circuit system does not need to be changed, and the adverse effect on the existing vehicle circuit system is avoided. If an independent power supply is used, the power supply of the processing circuit is not influenced by a vehicle power supply system, and the processing circuit is safe and reliable.
In embodiments of the present invention, the number of indicators 2 may be 1, 2 or more. Each of the at least one indicator 2 has an input 21, a first output 22 and a second output 23. An input terminal 21 of a first indicator 2-1 of the at least one indicator 2 is connected to the positive pole of the power supply or power plug 1, a first output terminal 22 of the first indicator 2-1 is connected to a first port S11 of a first monitoring unit S1 of the at least one monitoring unit S, and a second output terminal 23 of the first indicator 2-1 is connected to a second port S12 of the first monitoring unit S1. When the first port S11 and the second port S12 of the first monitoring unit S1 are connected, only the first output terminal 22 of the first indicator 2-1 outputs current, and when the first port S11 and the second port S12 of the first monitoring unit S1 are disconnected, both the first output terminal 22 and the second output terminal 23 of the first indicator 2-1 output current, as shown in fig. 2A and fig. 2B. The at least one monitoring unit S is in one-to-one correspondence with the at least one brake pad, and the at least one monitoring unit S is used for monitoring the wear of the at least one brake pad.
The utility model discloses an in the optional embodiment, the brake block can be brake block, brake block on tractor or the trailer, also can be brake block, brake block on other freight trains or passenger cars. One or more brake pads can be arranged on each wheel, or one or more brake pads can be arranged on only part of the wheels. For example, the monitoring unit S may be a wire embedded in the brake pad, one end of the wire is the first port S11, the other end of the wire is the second port S12, and when the brake pad is not worn, the first port S11 and the second port S12 are connected. As the brake pad is worn, the electric wires buried in the brake pad are gradually exposed, and then the exposed electric wires are worn away, thereby breaking the circuit between the first port S11 and the second port S12. Furthermore, the monitoring unit S may also be a wear indicator, e.g. a wear sensor (including pressure sensors, temperature sensors, thickness sensors, etc.). As the brake pads are gradually worn, the wear sensor may control the connection state between the first port S11 and the second port S12 to be changed. The utility model discloses an in the optional embodiment, indicator 2 can monitor the wearing and tearing state that corresponds the brake block respectively, makes things convenient for navigating mate or maintainer to find the brake block of wearing and tearing fast.
In an embodiment of the present invention, at least one electronic switch 3 corresponds one-to-one to the at least one indicator 2. In other words, one electronic switch corresponds to one indicator. In particular, each electronic switch of said at least one electronic switch 3 has a first input 31, a second input 32 and an output 33, the first input 31 of a first electronic switch 3-1 of said at least one electronic switch 3 being connected to the first output 22 of said first indicator 2-1, the second input 32 of said first electronic switch 3-1 being connected to the second output 23 of said first indicator 2-1, the output 33 of said first electronic switch 3-1 being connected to ground. When the first port S11 and the second port S12 of the first monitoring unit S1 are connected, current is input to only the second input terminal 32 of the first electronic switch 3-1, and when the first port S11 and the second port S12 of the first monitoring unit S1 are disconnected, current is input to both the first input terminal 31 and the second input terminal 32 of the first electronic switch 3-1, as shown in fig. 2A and fig. 2B.
In an alternative embodiment of the present invention, the ground in the figure may be the negative pole of the power supply or power plug 1.
Through the above embodiment of the utility model, can monitor the wearing and tearing state of each wheel end brake block respectively, make things convenient for the change, the maintenance of brake block. And the vehicle storage battery can be directly used as a power supply or a power plug, voltage conversion is not needed, energy conservation and environmental protection are realized, and the installation is convenient. In addition, the processing circuit is compatible with the existing monitoring unit on the vehicle, the existing braking system of the vehicle is not required to be changed, the cost is low, and the user experience is high.
The processing circuit shown in fig. 1 is further described with reference to fig. 3-7 in conjunction with specific embodiments.
Fig. 3 is a circuit structure diagram of an indicator according to an embodiment of the present invention.
In an embodiment of the present invention, each of the at least one indicator 2 may comprise: a first resistor 24, a second resistor 25, a first alarm 26, a transistor 27 and a third resistor 28.
Specifically, one end of the first resistor 24 is connected to the input end 21 of the indicator, and the other end of the first resistor 24 is connected to the first output end 22 of the indicator; one end of the second resistor 25 is connected with the input end 21 of the indicator; one end of the first alarm 26 is connected to the other end of the second resistor 25; the base of the triode 27 is connected with the other end of the first resistor 24, the collector of the triode 27 is connected with the other end of the first alarm 26, and the emitter of the triode 27 is connected with the second output end 23 of the indicator; third resistor 28 is disposed between first resistor 24 and the base of transistor 28.
In an optional embodiment of the present invention, the first alarm 26 is at least one of a buzzer, a light emitting diode, a speaker, and an indicator. The first resistor 24 and the third resistor 28 may have a resistance of 10K Ω, and the second resistor may have a resistance of 2K Ω. The first output 22 of the indicator is connected to the first port S11 of the monitoring unit and the second output 23 of the indicator is connected to the second port S12 of the monitoring unit S1. When the first port S11 and the second port S12 of the first monitoring unit S1 are conductive, the base of the transistor 27 is low, the transistor 27 is non-conductive, and the first alarm 26 is not activated. When the first port S11 and the second port S12 of the first monitoring unit S1 are open, the base of the transistor 27 is high, the transistor 27 is turned on, and the first alarm 26 starts to operate. In an alternative embodiment of the present invention, the ground may be the negative pole of the power source or power plug 1.
Through the above embodiment of the utility model, can monitor the wearing and tearing state of each wheel end brake block respectively, make things convenient for the change, the maintenance of brake block. And the method can be realized by using common electronic components, so that the cost is easier to control.
Fig. 4 is a circuit structure diagram of an electronic switch according to an embodiment of the present invention.
In an embodiment of the present invention, each electronic switch of the at least one electronic switch 3 comprises: a wire 34, a first diode 35 and a fourth resistor 36.
Specifically, one end of the wire 34 is connected to the second input end 32 of the electronic switch, and the other end of the wire 34 is connected to the output end 33 of the electronic switch; the anode of the first diode 35 is connected with the first input terminal 31 of the electronic switch; one end of the fourth resistor 36 is connected to the cathode of the first diode 35, and the other end of the fourth resistor 36 is connected to the output terminal 33 of the electronic switch.
In an alternative embodiment of the present invention, the resistance of the fourth resistor 36 may be 10K Ω. In an alternative embodiment of the present invention, the ground may be the negative pole of the power source or power plug 1. When the first port S11 and the second port S12 of the first monitoring unit S1 are conductive, the base of the transistor 27 is low, the transistor 27 is non-conductive, the first alarm 26 is not operated, the anode of the first diode 35 is also low, the first diode 35 is non-conductive, and only the second input terminal 32 of the electronic switch 3-1 inputs current. When the first port S11 and the second port S12 of the first monitoring unit S1 are open, the base of the transistor 27 is high, the transistor 27 is turned on, the first alarm 26 starts to operate, the anode of the first diode 35 is also high, the first diode 35 is turned on, and the first input terminal 31 and the second input terminal 32 of the electronic switch 3-1 both input current.
Through the above embodiment of the utility model, can monitor the wearing and tearing state of each wheel end brake block respectively, make things convenient for the change, the maintenance of brake block. And the method can be realized by using common electronic components, so that the cost is easier to control.
Fig. 5 is a circuit structure diagram of a processing circuit for monitoring wear of brake pads respectively according to an embodiment of the present invention.
The embodiment of the utility model provides an in, processing circuit can also include: a second alarm 4 and a transistor 5.
Specifically, one end of the second alarm 4 is connected to the positive pole of the power supply or power plug 1; the gate of the transistor 5 is connected to the cathode of the first diode 35 of each of the at least one electronic switch 3, the drain of the transistor 5 is connected to the other end of the second alarm 4, and the source of the transistor 5 is grounded.
In an optional embodiment of the present invention, the second alarm 4 may be at least one of a buzzer, a light emitting diode, a speaker, an indicator light, and the like. The transistor 5 may be an NMOS transistor. The gate of the transistor 5 is connected to the cathode of the first diode 35 of each of the at least one electronic switches 3. When the first port S11 and the second port S12 of the first monitoring unit S1 are connected, the base of the transistor 27 is low, the transistor 27 is not conductive, the first alarm 26 is not operated, and the anode of the first diode 35 is also low, the first diode 35 is not conductive, so that the gate of the transistor 27 is low, the transistor 27 is not conductive, and the second alarm 4 is not operated. When the first port S11 and the second port S12 of the first monitoring unit S1 are open, the base of the transistor 27 is high, the transistor 27 is turned on, the first alarm 26 starts to operate, the positive pole of the first diode 35 is also high, the first diode 35 is turned on, and at this time, the gate of the transistor 27 is high, the transistor 27 is also turned on, and the second alarm 4 starts to operate. The second alarm 4 may be disposed in the cab, and an open circuit of any one of the at least one monitoring unit S may cause the second alarm 4 to start working to remind a driver or a maintenance person.
Through the above embodiment of the utility model, the driver or maintainer discover 4 work backs of second siren, go the first siren of seeking work again to confirm the brake block of wearing and tearing rapidly, and then can change the brake block of wearing and tearing, it is convenient to maintain, and in time more change the brake block, guarantees that the vehicle goes safely.
Fig. 6 is a circuit diagram of a processing circuit for separately monitoring the wear of the brake pads according to another embodiment of the present invention.
The utility model discloses an optional embodiment, when power or power plug 1 is power plug, power plug is used for sending the direct current electric energy of vehicle storage battery level to processing circuit, power plug has first pin 11 and second pin 12, first pin 11 is used for connecting the positive pole of vehicle storage battery, second pin 12 is used for connecting the negative pole of vehicle storage battery.
In the embodiment of the present invention, the processing circuit may further include a first fuse 6 and a second fuse 7.
Specifically, the first fuse 6 is disposed near the first pin 11. The second fuse 7 is arranged near the second pin 12. The first fuse 6 and/or the second fuse 7 may be self-restoring fuses, or may be conventional fuses, which is not limited in the present invention.
The utility model discloses a preferred embodiment can supply processing circuit with the direct current of vehicle storage battery through power plug, can insert power plug on the electric energy output interface of vehicle storage battery promptly to supply power for processing circuit. In order to prevent the situation that when a power plug is inserted into an electric energy output interface of a vehicle battery, the positive electrode and the negative electrode of the power plug are reversely connected (namely the positive electrode of the power plug is connected to the negative electrode of the electric energy output interface of the vehicle battery, and the negative electrode of the power plug is connected to the positive electrode of the electric energy output interface of the vehicle battery), so that electronic components of a processing circuit are burnt out, fuses are respectively arranged near a first pin 11 and a second pin 12 of the power plug. If the positive and negative poles of the power plug are connected reversely with the positive and negative poles of the electric energy output interface of the vehicle battery, the safety of electronic components in the processing circuit can be effectively protected through the fuses arranged near the first pin 11 and the second pin 12 due to the large working current of the processing circuit. For example, when the positive electrode of the power plug is connected to the negative electrode of the power output interface of the vehicle battery and the negative electrode of the power plug is connected to the positive electrode of the power output interface of the vehicle battery, the monitoring unit S, the second alarm 4, the transistor 5, and the like may be burned down due to a large instantaneous current passing through the monitoring unit S, the second alarm 4, the transistor 5, and the like.
In an alternative embodiment of the present invention, the fuse may be a self-healing fuse or a conventional fuse. If the self-recovery fuse is arranged near the first pin 11 and/or the second pin 12, when the processing circuit is short-circuited or overloaded (for example, when the positive and negative poles of the power plug are connected reversely to the positive and negative poles of the electric energy output interface of the vehicle battery), the working current flowing through the self-recovery fuse is very large, the generated heat makes the self-recovery fuse in a high-resistance state, and the working current is rapidly reduced, so that the processing circuit is protected. After the fault is eliminated, the self-recovery fuse is recovered to be in a low-resistance state, so that the protection of the processing circuit (for example, the safety of electronic components such as the monitoring unit S, the second alarm 4 and the transistor 5 is effectively protected), manual replacement is not needed, and the maintenance is convenient. If the conventional fuse is arranged near the first pin 11 and the second pin 12, when the processing circuit is short-circuited or overloaded (for example, when the positive and negative poles of the power plug are connected inversely with the positive and negative poles of the power output interface of the vehicle battery), the working current flowing through the conventional fuse is large, and the conventional fuse is rapidly fused, so that the processing circuit can be effectively protected (for example, the monitoring unit S, the second alarm 4, the transistor 5 and the like are effectively protected).
The utility model discloses an optional embodiment, can only set up the fuse at power plug's positive pole or negative pole, and do not set up the fuse simultaneously at power plug's positive pole and negative pole, the utility model discloses do not regard this as the limit.
Fig. 7 is a circuit diagram of a processing circuit for separately monitoring the wear of brake pads according to another embodiment of the present invention.
In the embodiment of the present invention, the processing circuit may further include a second diode 8.
In particular, said second diode 8 is arranged in the vicinity of the positive or negative pole of the power supply or power plug 1.
If the positive and negative poles of the power plug are connected with the positive and negative poles of the electric energy output interface of the vehicle battery in a wrong way (reversely connected), the second diode 8 can effectively prevent a loop from being formed between the positive and negative poles of the power plug, and the safety of the processing circuit is further ensured.
In a preferred embodiment of the present invention, the processing circuit may further include a housing. Wherein the housing is used to protect the power supply or power plug 1, the at least one indicator 2 and the at least one electronic switch 3. The shell can effectively protect electronic components in the processing circuit. For example, dirt such as water and dust can be prevented from entering the processing circuit, and the processing circuit can be prevented from being damaged by external force.
It will be appreciated by a person skilled in the art that various combinations and/or combinations of features described in the various embodiments and/or the claims of the present invention are possible, even if such combinations or combinations are not explicitly described in the present invention. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present invention may be made without departing from the spirit and teachings of the invention. All such combinations and/or associations fall within the scope of the present invention.
The embodiments of the present invention have been described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Although the embodiments are described separately above, this does not mean that the measures in the embodiments cannot be used in advantageous combination. The scope of the invention is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the present invention, and these alternatives and modifications are intended to fall within the scope of the present invention.
Claims (10)
1. Processing circuitry for separately monitoring brake pad wear, the processing circuitry comprising:
a power supply or power plug (1);
at least one indicator (2), wherein each indicator of the at least one indicator (2) has an input (21), a first output (22) and a second output (23), wherein the input (21) of a first indicator (2-1) of the at least one indicator (2) is connected to the positive pole of the power supply or power plug (1), the first output (22) of the first indicator (2-1) is connected to a first port (S11) of a first monitoring unit (S1) of at least one monitoring unit (S), the second output (23) of the first indicator (2-1) is connected to a second port (S12) of the first monitoring unit (S1), and when conduction is established between the first port (S11) and the second port (S12) of the first monitoring unit (S1), only the first output (22) of the first indicator (2-1) outputs a current, when the first monitoring unit (S1) is disconnected from the first port (S11) and the second port (S12), the first output end (22) and the second output end (23) of the first indicator (2-1) both output currents, the at least one monitoring unit (S) is in one-to-one correspondence with at least one brake pad, and the at least one monitoring unit (S) is used for monitoring the wear of the at least one brake pad; and
at least one electronic switch (3) in one-to-one correspondence with the at least one indicator (2), wherein each electronic switch (3) of the at least one electronic switch (3) has a first input (31), a second input (32) and an output (33), the first input (31) of a first electronic switch (3-1) of the at least one electronic switch (3) is connected with the first output (22) of the first indicator (2-1), the second input (32) of the first electronic switch (3-1) is connected with the second output (23) of the first indicator (2-1), the output (33) of the first electronic switch (3-1) is grounded, when conduction is established between the first port (S11) and the second port (S12) of the first monitoring unit (S1), only the second input (32) of the first electronic switch (3-1) inputs a current, when the first port (S11) and the second port (S12) of the first monitoring unit (S1) are disconnected, the first input end (31) and the second input end (32) of the first electronic switch (3-1) input current.
2. The processing circuit according to claim 1, wherein each indicator of the at least one indicator (2) comprises:
a first resistor (24), wherein one end of the first resistor (24) is connected with the input end (21) of the indicator, and the other end of the first resistor (24) is connected with the first output end (22) of the indicator;
a second resistor (25), wherein one end of the second resistor (25) is connected with the input end (21) of the indicator;
a first alarm (26), wherein one end of the first alarm (26) is connected to the other end of the second resistor (25);
a triode (27), wherein the base of the triode (27) is connected with the other end of the first resistor (24), the collector of the triode (27) is connected with the other end of the first alarm (26), and the emitter of the triode (27) is connected with the second output end (23) of the indicator; and
a third resistor (28), wherein the third resistor (28) is arranged between the first resistor (24) and the base of the triode (27).
3. The processing circuit according to claim 2, wherein the first alarm (26) is at least one of a buzzer, a light emitting diode, a speaker, an indicator light.
4. The processing circuit according to any of claims 1 to 3, wherein each of the at least one electronic switches (3) comprises:
a wire (34), wherein one end of the wire (34) is connected with the second input end (32) of the electronic switch, and the other end of the wire (34) is connected with the output end (33) of the electronic switch;
a first diode (35), wherein the anode of the first diode (35) is connected to the first input (31) of the electronic switch; and
and a fourth resistor (36), wherein one end of the fourth resistor (36) is connected with the cathode of the first diode (35), and the other end of the fourth resistor (36) is connected with the output end (33) of the electronic switch.
5. The processing circuit of claim 4, further comprising:
a second alarm (4), wherein one end of the second alarm (4) is connected with the positive pole of the power supply or power plug (1); and
a transistor (5), wherein the gate of the transistor (5) is connected to the cathode of the first diode (35) of each of the at least one electronic switch (3), the drain of the transistor (5) is connected to the other end of the second alarm (4), and the source of the transistor (5) is connected to ground.
6. The processing circuit according to claim 5, wherein the second alarm (4) is at least one of a buzzer, a light emitting diode, a speaker, an indicator light.
7. The processing circuit according to any one of claims 1 to 3, 5 or 6, wherein when the power source or power plug (1) is a power plug, the power plug is used for transmitting the direct current electric energy of the vehicle battery level to the processing circuit, the power plug is provided with a first pin (11) and a second pin (12), the first pin (11) is used for connecting the anode of the vehicle battery, the second pin (12) is used for connecting the cathode of the vehicle battery,
the processing circuit further comprises:
a first fuse (6), wherein the first fuse (6) is arranged in the vicinity of the first pin (11).
8. The processing circuit of claim 7, further comprising:
a second fuse (7), wherein the second fuse (7) is disposed near the second pin (12).
9. The processing circuit according to any of claims 1 to 3, 5, 6, further comprising:
a second diode (8), wherein the second diode (8) is arranged in the vicinity of the positive or negative pole of the power source or power plug (1).
10. The processing circuit of claim 1, further comprising:
a housing for protecting the power supply or power plug (1), the at least one indicator (2) and the at least one electronic switch (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021705943.1U CN212225836U (en) | 2020-08-17 | 2020-08-17 | Processing circuit for respectively monitoring brake pad abrasion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021705943.1U CN212225836U (en) | 2020-08-17 | 2020-08-17 | Processing circuit for respectively monitoring brake pad abrasion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981065A (en) * | 2020-08-17 | 2020-11-24 | 隆中控股集团股份有限公司 | Processing circuit for respectively monitoring brake pad abrasion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981065A (en) * | 2020-08-17 | 2020-11-24 | 隆中控股集团股份有限公司 | Processing circuit for respectively monitoring brake pad abrasion |
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