Intelligent compact brake resistor device

Abstract

The utility model discloses an intelligent compact type brake resistor device, and particularly relates to the technical field of brake resistors, the intelligent compact type brake resistor device comprises a machine base, the top of the machine base is provided with a sensing assembly used for preventing a resistor from being burnt out and performing intelligent regulation and control; a transmission mechanism with high integration level is arranged at the top of the rear end of the machine base, and a resistor unit is arranged outside the transmission mechanism. According to the utility model, the current sensor is additionally arranged in the junction box, so that the current is detected in real time, some feedback can be carried out when the current exceeds the limit, the direct-current voltage is kept in an allowable range, heat generated when the direct-current voltage continuously rises is prevented from melting through the resistor, the safety of the junction box in use is ensured, and the safety of the junction box is ensured by detecting the current. The energy conversion power of the detection resistor can be ensured, the cooling fan is regulated and controlled to operate with reduced power on the premise of meeting the heat dissipation requirement, the rotating speed of an impeller in the cooling fan is reduced, and therefore noise can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brake resistors, in particular to an intelligent and compact brake resistor device. Background Art

[0002] The braking resistor device is a device that converts the kinetic energy of the locomotive into electrical energy when the locomotive is braking and the traction motor works as a generator. The electrical energy generated by the generator is consumed on the resistor unit and converted into heat energy, which is blown into the atmosphere by the fan, thereby achieving the purpose of speed reduction by energy conversion.

[0003] In view of the power supply method of this type of brake resistor cooling fan, the power is supplied to the motor in the form of voltage division from the resistor strip tap. If for some reason the voltage of a single resistor strip load is too high or too low, the cooling fan motor cannot work properly, which may result in a reduced motor service life or the risk of the resistor strip being melted through.

[0004] The original brake resistor device uses a double box structure, and the resistor box is responsible for consuming the electric energy generated by the traction motor under braking conditions. This structure will take up a lot of space and weight on the vehicle. However, if the two sets of resistor belts are simply installed in the same box and share a set of cooling fans, the brake resistor device will not use the resistor belt to power the motor when it is running in a half-power state. The cooling fan will not work, and the heat generated by the resistor cannot be removed in time, causing the resistor to burn out. In order to solve the above problems, an intelligent and compact brake resistor device is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an intelligent and compact brake resistor device, which has the advantages of intelligent control, fault alarm, compact structure, etc., to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intelligent and compact brake resistor device, comprising a base, the top of which is provided with a sensor component for preventing the resistor from burning out and performing intelligent regulation;

[0007] A transmission mechanism with high integration is provided at the top of the rear end of the base, and a resistance unit is provided outside the transmission mechanism;

[0008] The sensor assembly includes a junction box installed on the top of the base and used to distribute the motor wiring, and a current sensor and a motor wiring structure are installed inside the junction box, and an electrical gap is reserved between the current sensor and the motor wiring structure;

[0009] A signal line outlet hole is reserved inside the junction box.

[0010] In a preferred embodiment, the transmission mechanism includes a cooling fan, and an electric motor is provided at the rear end of the cooling fan, an air guide tube is provided at the head end of the cooling fan, and the air guide tube is connected to the tail end of the resistance unit, and a sealing gasket for sealing is provided between the air guide tube and the resistance unit. The cooling fan is driven by the motor to operate, and the heat generated during the operation of the resistance unit is discharged by the cooling fan, thereby achieving heat dissipation of the resistance unit.

[0011] In a preferred embodiment, the resistance unit includes two groups of resistance grids, each group of resistance grids has three resistance grids, one group of resistance grids provides electric energy for the motor, and the other group of resistance grids is used to consume electric energy;

[0012] The transmission mechanism is arranged at the rear side of the resistance unit. The electric energy generated by the operation of the motor is converted into heat energy through two sets of resistance grids, and then the heat energy is dissipated in time under the action of the transmission mechanism, so as to realize the locomotive speed reduction by converting energy consumption.

[0013] In a preferred embodiment, a protective net is provided on the top of the rear end of the base to prevent foreign objects. The protective net is fixed to the rear end of the resistor unit by bolts, and a wiring box structure is provided inside the protective net, which is installed on the top of the base and used for the signal line to pass through the wall; the protective net is sleeved on the outside of the cooling fan, the motor, the air guide tube and the sealing gasket. The setting of the protective net can prevent debris from falling into the resistor unit and affecting the operating stability of the resistor unit. At the same time, the setting of the junction box allows the signal line to pass through the top of the base and then turn to the bottom of the base for routing.

[0014] In a preferred embodiment, a current input terminal and a current output terminal are provided between each group of resistance grids, wherein the resistance grid close to the transmission mechanism is provided with a plurality of taps that can be freely selected for connection according to voltage division requirements. By setting the current input terminal and the current output terminal, the operating stability of the current can be guaranteed.

[0015] In a preferred embodiment, an air outlet is provided at the top of the front end of the base, and the air outlet is installed at the front end of the resistance unit. The setting of the air outlet can guide the output direction of the wind.

[0016] Technical effects and advantages of the utility model:

[0017] By adding a current sensor inside the junction box, the current can be detected in real time. When the current exceeds the limit, some feedback can be performed to keep the DC voltage within the allowable range, prevent the heat generated when the DC voltage continues to rise from melting through the resistor, and ensure the safety of the utility model when used. In addition, by detecting the current, the energy conversion power of the detection resistor can be guaranteed, and the cooling fan can be regulated to reduce the power operation while meeting the heat dissipation requirements, so that the impeller speed in the cooling fan is reduced, thereby effectively reducing the generation of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a top view of the junction box of the utility model;

[0020] Figure 3 This is a rear view of the protective net of the utility model;

[0021] Figure 4 This is a rear view of the cooling fan of the utility model;

[0022] Figure 5 It is a side view of the resistor unit of the utility model;

[0023] Figure 6 This is a circuit connection diagram of the utility model.

[0024] The accompanying drawings are marked as follows: 1. base; 2. junction box; 3. current sensor; 4. motor wiring structure; 5. signal line outlet hole; 6. cooling fan; 7. motor; 8. air guide tube; 9. sealing gasket; 10. resistance unit; 101. resistance grid; 102. current input terminal; 103. current output terminal; 11. protective net; 12. wiring box structure; 13. air outlet tube. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Refer to the instruction manual Figure 1-6 The utility model provides an intelligent and compact brake resistor device, comprising a base 1, wherein a sensor component for preventing the resistor from burning out and performing intelligent regulation is provided on the top of the base 1;

[0027] A transmission mechanism with high integration is provided at the top of the rear end of the base 1, and a resistance unit is provided outside the transmission mechanism;

[0028] The sensor assembly includes a junction box 2 installed on the top of the base 1 and used to distribute the motor wiring, and a current sensor 3 and a motor wiring structure 4 are installed inside the junction box 2, and an electrical gap is reserved between the current sensor 3 and the motor wiring structure 4;

[0029] A signal line outlet hole 5 is reserved inside the junction box 2 .

[0030] like Figure 3 and 4 As shown, the transmission mechanism includes a cooling fan 6, and a motor 7 is provided at the rear end of the cooling fan 6, an air guide tube 8 is provided at the head end of the cooling fan 6, and the air guide tube 8 is connected to the tail end of the resistance unit 10, and a sealing gasket 9 for sealing is provided between the air guide tube 8 and the resistance unit 10. The cooling fan 6 is driven by the motor 7 to operate, and the heat generated by the resistance unit 10 during operation is discharged by the cooling fan 6, so that the heat dissipation of the resistance unit 10 can be achieved.

[0031] like Figure 1 , 3 , 4 and 5, the resistance unit 10 includes two groups of resistance grids 101, each group of resistance grids 101 has three resistor grids, one group of resistance grids 101 provides electric energy for the motor 7, and the other group of resistance grids 101 is used to consume electric energy; the transmission mechanism is arranged at the rear side of the resistance unit 10, and the electric energy generated by the operation of the motor 7 is converted into heat energy through the two groups of resistance grids 101, and then the heat energy is dissipated in time under the action of the transmission mechanism, so as to realize the locomotive speed reduction in a way of mutual conversion of energy consumption.

[0032] like Figure 1 and 3 As shown, a protective net 11 is provided at the top of the rear end of the base 1 to prevent foreign matter from falling into the resistor unit 10, and the protective net 11 is fixed to the rear end of the resistor unit 10 by bolts, and a wiring box structure 12 is provided inside the protective net 11, which is installed on the top of the base 1 and is used for the signal line to pass through the wall; the protective net 11 is sleeved on the outside of the cooling fan 6, the motor 7, the air guide tube 8 and the sealing gasket 9. The setting of the protective net 11 can prevent debris from falling into the resistor unit 10 and affecting the operating stability of the resistor unit 10. At the same time, the setting of the junction box 2 allows the signal line to pass through the top of the base 1 and then turn to the bottom of the base 1 for routing.

[0033] like Figure 5 As shown, a current input terminal 102 and a current output terminal 103 are provided between each group of resistor grids 101, wherein the resistor grid 101 close to the transmission mechanism is provided with a plurality of taps which can be freely selected for connection according to the voltage division requirements. By setting the current input terminal 102 and the current output terminal 103, the operating stability of the current can be guaranteed.

[0034] like Figure 1 As shown, an air outlet 13 is provided at the top of the front end of the base 1, and the air outlet 13 is installed at the front end of the resistance unit 10. Through the setting of the air outlet 13, the output direction of the wind can be guided.

[0035] By adding a current sensor 3 inside the junction box 2, the current is detected in real time. When the current exceeds the limit, some feedback can be performed to keep the DC voltage within the allowable range, prevent the heat generated when the DC voltage continues to rise from melting through the resistor, and ensure the safety of the utility model when used. By detecting the current, the energy conversion power of the detection resistor can be guaranteed, and the cooling fan 6 can be regulated to reduce the power operation under the premise of meeting the heat dissipation requirements, so that the impeller speed in the cooling fan 6 is reduced, thereby effectively reducing the noise generation.

[0036] In addition, the utility model is an intelligent and compact brake resistor device with an additional current sensor 3, which detects the current and the energy conversion power of the resistor in real time, and regulates the cooling fan 6 to reduce the power operation under the premise of meeting the heat dissipation requirements, and the impeller speed is reduced, which effectively reduces the noise generation.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An intelligent and compact braking resistor device, characterized in that: It comprises a machine base (1), wherein a sensor component for preventing the resistor from burning out and performing intelligent regulation is provided on the top of the machine base (1); A transmission mechanism with a high degree of integration is provided at the top of the rear end of the machine base (1), and a resistance unit is provided outside the transmission mechanism; The sensor assembly comprises a junction box (2) mounted on the top of the machine base (1) and used for distributing motor wiring, and a current sensor (3) and a motor wiring structure (4) are mounted inside the junction box (2), and an electrical gap is retained between the current sensor (3) and the motor wiring structure (4); A signal line outlet hole (5) is reserved inside the junction box (2).

2. An intelligent and compact braking resistor device according to claim 1, characterized in that: The transmission mechanism comprises a cooling fan (6), and a motor (7) is arranged at the rear end of the cooling fan (6), an air guide tube (8) is arranged at the head end of the cooling fan (6), and the air guide tube (8) is connected to the rear end of the resistance unit (10), and a sealing gasket (9) for sealing is arranged between the air guide tube (8) and the resistance unit (10).

3. The intelligent and compact brake resistor device according to claim 2, characterized in that: The resistance unit (10) comprises two groups of resistance grids (101), each group of resistance grids (101) comprises three resistance grids, one group of resistance grids (101) provides electric energy for the motor (7), and the other group of resistance grids (101) is used to consume electric energy; The transmission mechanism is arranged on the rear side of the resistance unit (10).

4. The intelligent and compact brake resistor device according to claim 3, characterized in that: A protective net (11) is provided at the top of the rear end of the base (1) to prevent foreign matter, the protective net (11) is fixed to the rear end of the resistor unit (10) by bolts, and a wiring box structure (12) is provided inside the protective net (11) and is installed on the top of the base (1) and is used for signal lines to pass through the wall; The protective net (11) is sleeved on the outside of the cooling fan (6), the motor (7), the air guide tube (8) and the sealing gasket (9).

5. The intelligent and compact brake resistor device according to claim 3, characterized in that: A current input terminal (102) and a current output terminal (103) are provided between each group of resistance grids (101), wherein the resistance grid (101) close to the transmission mechanism is provided with a plurality of taps that can be freely selected for connection according to voltage division requirements.

6. The intelligent and compact brake resistor device according to claim 3, characterized in that: An air outlet cylinder (13) is provided at the top of the front end of the machine base (1), and the air outlet cylinder (13) is installed at the front end of the resistor unit (10).

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