Adjustable load for controller research and development

Abstract

The utility model discloses an adjustable load for controller research and development, which comprises a bottom plate, a mounting bracket and a sensor bracket which are oppositely arranged are fixedly mounted on the bottom plate, a motor load is arranged between the mounting bracket and the sensor bracket, and a sheath made of a buffer heat dissipation material is fixedly sleeved on the outer wall of the motor load. A first interlayer is arranged in the sheath, and the first interlayer is filled with buffer gas; a metal heat dissipation sleeve is arranged outside the sheath, a plurality of heat dissipation fins parallel to the extension direction of a motor shaft of the motor load are uniformly distributed on the outer wall of the metal heat dissipation sleeve, a heat dissipation channel is formed between every two adjacent heat dissipation fins, an air outlet mechanism is arranged on the side, facing the motor load, of the sensor support, and the air outlet mechanism blows air into the heat dissipation channels; the outer side of each heat dissipation fin is sleeved with a fixing sleeve made of rigid materials, the bottom of each fixing sleeve is fixedly connected with a connecting column, and the connecting columns are fixedly installed on the bottom plate. According to the utility model, the heat dissipation performance and the anti-shake performance of the motor load are simultaneously optimized, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motor loads, in particular to an adjustable load used for controller research and development. Background Art

[0002] In the process of controller development, debugging and operating condition testing are indispensable and important links, and various motor working conditions need to be simulated in the laboratory.

[0003] At present, the common practice is to use a dynamometer or a resistor to simulate the load. The method of using a resistor to simulate is low-cost, but the load simulated by the resistor is not completely consistent with the actual load, resulting in the need to spend extra time on site for secondary debugging later, affecting the progress of the work. Using a dynamometer to simulate the load requires continuous use of the dynamometer for a long time, but since the dynamometer is a measuring device, continuous and high-intensity use of the dynamometer for a long time will cause damage to it, thus affecting the measurement accuracy.

[0004] In view of the defects of the above two load simulation methods, a motor simulation load solution has emerged in the prior art. This solution can adjust the load dynamically by adjusting the motor magnetic resistance, so that the motor simulation load is consistent with the actual load situation. At the same time, the motor can be driven and used for a long time, with high work efficiency and low cost. However, when the motor load is working on the bracket for a long time and at a high intensity, the motor continuously generates heat. At the same time, the motor is prone to relative jitter with the fixed bracket when driven. The motor load equipment in the prior art does not optimize the heat dissipation and jitter of the motor, resulting in a poor service life of the motor load. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an adjustable load for controller development, which is used to simultaneously optimize the heat dissipation performance and anti-shake performance of the motor load and extend its life.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable load for controller development, comprising a base plate, on which a mounting bracket and a sensor bracket are fixedly mounted opposite to each other, a motor load is arranged between the mounting bracket and the sensor bracket, a sheath made of a buffer heat dissipation material is fixedly sleeved on the outer wall of the motor load, a first interlayer is arranged in the sheath, and the first interlayer is filled with a buffer gas;

[0007] A first bearing is provided in the mounting bracket, a second bearing is provided in the sensor bracket, two output shafts of the motor load are respectively fixed in the first bearing and the second bearing, and silicone gaskets are provided on the outer walls of the first bearing and the second bearing;

[0008] A metal heat dissipation sleeve is provided outside the sheath, and a plurality of heat dissipation fins are evenly distributed on the outer wall of the metal heat dissipation sleeve and are parallel to the extension direction of the motor shaft of the motor load, and a heat dissipation channel is formed between adjacent heat dissipation fins. An air outlet mechanism is provided on the side of the sensor bracket facing the motor load, and the air outlet mechanism blows air into each of the heat dissipation channels;

[0009] A fixing sleeve made of a rigid material is sleeved on the outer side of each heat dissipation fin, and a connecting column is fixedly connected to the bottom of the fixing sleeve, and the connecting column is fixedly installed on the bottom plate.

[0010] Furthermore, the fixed sleeve includes an inner sleeve and an outer sleeve, a second interlayer is provided between the inner sleeve and the outer sleeve, a plurality of evenly distributed elastic parts are provided in the second interlayer, two ends of each of the elastic parts are respectively connected to the inner sleeve and the outer sleeve, the inner sleeve is fixedly sleeved on the outer side of each of the heat dissipating fins, and the outer sleeve is fixedly connected to the connecting column.

[0011] Furthermore, the elastic member comprises an elastic rubber tube.

[0012] Furthermore, a plurality of heat dissipation grooves parallel to each other are formed on the outer wall of the heat dissipation fin, and the heat dissipation grooves are parallel to the extension direction of the motor shaft of the motor load.

[0013] Furthermore, a buffer pad is provided at the bottom of the base plate, and the buffer pad is made of sponge material.

[0014] Furthermore, the air outlet mechanism is a bladeless fan, and the air outlet of the bladeless fan is oriented toward each of the heat dissipation channels.

[0015] Furthermore, the sheath is made of silicone material, and the buffer gas is nitrogen.

[0016] Beneficial effects of the utility model:

[0017] The utility model firstly sleeves a sheath on the outer wall of the motor load, utilizes the material properties of the sheath itself to achieve preliminary anti-shake, and at the same time fills a buffer gas in the first interlayer inside the sheath, utilizes the buffer gas to achieve further anti-shake; then, a silicone gasket is arranged on the outer wall of the first bearing in the mounting bracket and the second bearing in the sensor bracket, so that when the motor load vibrates during operation, the buffering performance of the silicone gasket is utilized to reduce the collision between the bearing and the bracket, thereby extending the service life; in addition, the heat dissipation characteristics of the sheath are utilized to transfer the heat on the motor load to the metal heat dissipation sheath, and the heat dissipation fins outside the metal heat dissipation sheath are utilized to transfer the heat to the heat dissipation channel, and finally, an air outlet mechanism is utilized to blow air toward each of the heat dissipation channels, so that the hot air is blown to the outside, thereby achieving effective heat dissipation. Therefore, the utility model achieves the simultaneous optimization of the heat dissipation performance and the anti-shake performance of the motor load, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side sectional view of an adjustable load used for controller development in the utility model;

[0019] Figure 2 It is an enlarged schematic diagram of point A in the utility model;

[0020] Figure 3 It is an enlarged schematic diagram of the second bearing installation part in the utility model;

[0021] Figure 4 It is an enlarged schematic diagram of the first bearing installation position in the utility model.

[0022] Figure numerals: 1. base plate; 2. mounting bracket; 21. first bearing; 3. sensor bracket; 31. second bearing; 4. motor load; 5. sleeve; 6. metal heat sink; 7. heat sink fins; 8. air outlet mechanism; 9. fixing sleeve; 91. inner sleeve; 92. outer sleeve; 93. elastic member; 10. connecting column; 11. buffer pad; 12. silicone gasket. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0024] like Figures 1 to 4 As shown, an adjustable load for controller development of this embodiment includes a base plate 1, on which a mounting bracket 2 and a sensor bracket 3 are fixedly mounted opposite to each other, a motor load 4 is arranged between the mounting bracket 2 and the sensor bracket 3, a fixed sleeve 9 on the outer wall of the motor load 4 is connected to a sheath 5 made of a buffer heat dissipation material, a first interlayer is arranged in the sheath 5, and the first interlayer is filled with a buffer gas;

[0025] A first bearing 21 is provided in the mounting bracket 2, a second bearing 31 is provided in the sensor bracket 3, two output shafts of the motor load 4 are respectively fixed in the first bearing 21 and the second bearing 31, and silicone gaskets 12 are provided on the outer walls of the first bearing 21 and the second bearing 31;

[0026] A metal heat dissipation sleeve 6 is provided outside the sheath 5, and a plurality of heat dissipation fins 7 are evenly distributed on the outer wall of the metal heat dissipation sleeve 6 and are parallel to the extension direction of the motor shaft of the motor load 4. A heat dissipation channel is formed between adjacent heat dissipation fins 7. An air outlet mechanism 8 is provided on the side of the sensor bracket 3 facing the motor load 4, and the air outlet mechanism 8 blows air into each heat dissipation channel;

[0027] The outer sleeve 92 of each heat dissipating fin 7 is connected to a fixing sleeve 9 made of a rigid material. The bottom of the fixing sleeve 9 is fixedly connected to a connecting column 10 , and the connecting column 10 is fixedly installed on the bottom plate 1 .

[0028] Specifically, in this embodiment, a reluctance controller is also provided on the bottom plate 1. By adjusting the motor reluctance through the reluctance controller, the motor load 4 can be accurately and steplessly adjusted within the adjustable range. In addition, by programming the reluctance controller, the change of the motor load 4 can be controlled, thereby simulating the real working condition of the load to a greater extent. Among them, the motor windings of the motor load 4 can be replaced to obtain different inductances and resistances. The overall structure of the adjustable load device in this embodiment is compact, and the size of the overall device is 40*60*40cm. The compact structure of the adjustable load device allows it to be placed in a high and low temperature test box or a spray cabin to simulate the impact of different environments on the adjustable load device. The adjustable load device in this technical solution is shielded from electromagnetic radiation, so it can be placed in a microwave darkroom together with the EMI test equipment during EMI testing without affecting the test results.

[0029] The technical solution first sleeves the sheath 5 on the outer wall of the motor load 4, utilizes the material properties of the sheath 5 itself to achieve preliminary anti-shake, and at the same time fills the first interlayer inside the sheath 5 with buffer gas, and utilizes the buffer gas to achieve further anti-shake; then, a silicone gasket 12 is set on the outer wall of the first bearing 21 in the mounting bracket 2 and the second bearing 31 in the sensor bracket 3, so that when the motor load 4 shakes during operation, the buffering performance of the silicone gasket 12 can be used to reduce the collision between the bearing and the bracket, thereby extending the service life; in addition, the heat dissipation characteristics of the sheath 5 are used to transfer the heat on the motor load 4 to the metal heat dissipation sheath 6, and the heat dissipation fins 7 on the outside of the metal heat dissipation sheath 6 are used to transfer the heat to the heat dissipation channel, and finally the air outlet mechanism 8 is used to blow air into each of the heat dissipation channels to blow the hot air to the outside, thereby achieving effective heat dissipation. Therefore, the utility model achieves the simultaneous optimization of the heat dissipation performance and anti-shake performance of the motor load 4, thereby extending the service life.

[0030] Preferably, the fixed sleeve 9 includes an inner sleeve 91 and an outer sleeve 92, a second interlayer is provided between the inner sleeve 91 and the outer sleeve 92, a plurality of evenly distributed elastic members 93 are provided in the second interlayer, two ends of each elastic member 93 are respectively connected to the inner sleeve 91 and the outer sleeve 92, the inner sleeve 91 and the fixed sleeve 9 are connected to the outside of each heat dissipating fin 7, and the outer sleeve 92 is fixedly connected to the connecting column 10.

[0031] Specifically, in this embodiment, by setting a plurality of elastic members 93 between the inner sleeve 91 and the outer sleeve 92, buffering and anti-shake can be performed when the motor load 4 shakes. In combination with the sleeve 5 having buffering and anti-shake performance, double anti-shake of the motor load 4 is achieved.

[0032] Preferably, the elastic member 93 comprises an elastic rubber tube.

[0033] Specifically, in this embodiment, the elastic deformation characteristics of the elastic rubber tube are used to further prevent the motor load 4 from shaking.

[0034] Preferably, a plurality of heat dissipation grooves parallel to each other are formed on the outer wall of the heat dissipation fin 7 , and the heat dissipation grooves are parallel to the extension direction of the motor shaft of the motor load 4 .

[0035] Specifically, in this embodiment, by providing heat dissipation grooves on the heat dissipation fins 7, the contact area between the heat dissipation fins 7 and the air is increased, the heat dissipation performance of the heat dissipation fins 7 is improved, and the heat on the surface of the load motor can be dissipated more quickly.

[0036] Preferably, a buffer pad 11 is provided at the bottom of the base plate 1, and the buffer pad 11 is made of sponge material.

[0037] Specifically, in this embodiment, by providing a buffer pad 11 at the bottom of the base plate 1 , the buffering and anti-shake performance of the motor load 4 when it shakes is further improved.

[0038] Preferably, the air outlet mechanism 8 is a bladeless fan, and the air outlet of the bladeless fan is oriented toward each heat dissipation channel.

[0039] Specifically, in this embodiment, the annular air outlet structure of the bladeless fan will not interfere with the sensor bracket 3, and the blades will not leak out, thus avoiding dust accumulation.

[0040] Preferably, the sheath 5 is made of silica gel material, and the buffer gas is nitrogen.

[0041] Specifically, in this embodiment, the silicone material has good thermal conductivity and flexible structural characteristics, and can simultaneously achieve anti-shake buffering and heat dissipation for the load motor. At the same time, since nitrogen has stable chemical properties, filling the silicone sheath 5 with nitrogen can effectively anti-shake the motor load 4.

[0042] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. An adjustable load for controller development, characterized in that: The invention comprises a base plate (1), on which a mounting bracket (2) and a sensor bracket (3) are fixedly mounted and arranged opposite to each other, a motor load (4) is arranged between the mounting bracket (2) and the sensor bracket (3), a fixed sleeve (9) on the outer wall of the motor load (4) is connected to a sheath (5) made of a buffer heat dissipation material, a first interlayer is arranged in the sheath (5), and the first interlayer is filled with a buffer gas; A first bearing (21) is provided in the mounting bracket (2), a second bearing (31) is provided in the sensor bracket (3), two output shafts of the motor load (4) are respectively fixed in the first bearing (21) and the second bearing (31), and silicone gaskets (12) are provided on the outer walls of the first bearing (21) and the second bearing (31); A metal heat dissipation sleeve (6) is provided outside the protective sleeve (5), a plurality of heat dissipation fins (7) are evenly distributed on the outer wall of the metal heat dissipation sleeve (6) and are parallel to the extension direction of the motor shaft of the motor load (4), and a heat dissipation channel is formed between adjacent heat dissipation fins (7), and an air outlet mechanism (8) is provided on the side of the sensor bracket (3) facing the motor load (4), and the air outlet mechanism (8) blows air into each of the heat dissipation channels; The outer sleeve (92) of each heat dissipation fin (7) is connected to a fixing sleeve (9) made of a rigid material, the bottom of the fixing sleeve (9) is fixedly connected to a connecting column (10), and the connecting column (10) is fixedly mounted on the bottom plate (1).

2. The adjustable load for controller development according to claim 1, characterized in that: The fixed sleeve (9) comprises an inner sleeve (91) and an outer sleeve (92), a second interlayer is provided between the inner sleeve (91) and the outer sleeve (92), a plurality of evenly distributed elastic members (93) are provided in the second interlayer, two ends of each elastic member (93) are respectively connected to the inner sleeve (91) and the outer sleeve (92), the inner sleeve (91) and the fixed sleeve (9) are connected to the outer side of each heat dissipation fin (7), and the outer sleeve (92) is fixedly connected to the connecting column (10).

3. The adjustable load for controller development according to claim 2, characterized in that: The elastic member (93) comprises an elastic rubber tube.

4. The adjustable load for controller development according to claim 1, characterized in that: A plurality of heat dissipation grooves parallel to each other are provided on the outer wall of the heat dissipation fin (7), and the heat dissipation grooves are parallel to the extension direction of the motor shaft of the motor load (4).

5. The adjustable load for controller development according to claim 1, characterized in that: A buffer pad (11) is provided at the bottom of the base plate (1), and the buffer pad (11) is made of sponge material.

6. The adjustable load for controller development according to claim 1, characterized in that: The air outlet mechanism (8) is a bladeless fan, and the air outlet of the bladeless fan faces each of the heat dissipation channels.

7. The adjustable load for controller development according to claim 1, characterized in that: The sheath (5) is made of silica gel material, and the buffer gas is nitrogen.

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