Temperature control detection device and direct current charging cabinet thereof

Abstract

The utility model provides a temperature control detection device and a DC charging cabinet thereof, and belongs to the technical field of temperature control detection. Comprising a detector body, the detector body is provided with a display screen and an operation key set, the top of the detector body is movably connected with two electricity testing bent rods, the back of the detector body is provided with a miniature fan box and an air pipe, the miniature fan box and the air pipe are communicated with each other, an electric heating pipe is arranged in the air pipe, and the electric heating pipe is connected with the display screen. The beneficial effects are that the two electricity-measuring bent rods are in lap joint with two ends of the thermistor to measure the resistance value of the resistor, the miniature fan box and the electric heating pipe in the air pipe are cooperatively started, hot air is blown to the resistor to be measured to heat the thermistor, and the change of the resistance value of the resistor displayed on the display screen is observed, so that whether the function of the thermistor is normal or not is detected; the device is small and exquisite, convenient to carry and simple to operate, and the detection result is visually reflected through the display screen.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature control detection, in particular to a temperature control detection device and a DC charging cabinet thereof. Background Art

[0002] As the use of pure electric vehicles becomes more and more widespread, the demand for charging is increasing, and the market has put forward higher and higher requirements on the safety and convenience of vehicle charging. Convenient, safe and fast charging is a consistent demand of the market for vehicles. By replacing the traditional AC charging cabinet with a DC charging cabinet with a built-in rectifier for charging, the charging efficiency is improved while further reducing the use of the on-board charger, which is convenient and fast.

[0003] In the prior art, the DC charging cabinet will inevitably cause the temperature inside the cabinet to rise due to current transmission during the charging process. If the temperature cannot be reduced in time, it may cause a fire accident in serious cases. Therefore, a temperature control device is installed inside the charging cabinet. When the temperature inside the cabinet rises to the rated temperature, the transmission voltage is automatically reduced or the heat dissipation device is started, or even the shutdown function is started. The heating source inside the cabinet is the power transmission control circuit board, so this type of temperature control device mostly uses thermistors for temperature monitoring.

[0004] However, the temperature control device inside the charging cabinet needs to be checked regularly, that is, to detect whether the thermistor is functioning normally. Existing inspectors use a multimeter set to the ohm range for measurement, then heat the thermistor for a certain period of time and measure it again to see if there is any change between the two readings. This method is complicated to operate and requires electrical training for the operator. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a temperature control detection device to solve the technical problem of complex detection operation of the temperature control device in the prior art.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A temperature control detection device includes a detector body, a display screen and an operation button group are provided on the detector body, the top of the detector body is movably connected with an electrical measuring bent rod, two electrical measuring bent rods are provided, a micro fan box and an air duct are provided on the back of the detector body, the micro fan box and the air duct are connected to each other, and an electric heating tube is provided inside the air duct.

[0008] Preferably, the display screen and the operation button group are both located on the front of the detector body, the display screen is an LED electronic screen, and the operation button group includes a power on button, a power off button, a fan on / off button, and a heating tube on / off button.

[0009] Preferably, a charging slot is provided at the bottom of the detector body, and a slide groove is provided at the top of the detector body, and the slide groove is slidably connected with the body of the electrical measuring bending rod.

[0010] Preferably, a cavity is opened inside the detector body near the top, a mounting seat is movably connected inside the cavity, a slide rail is opened on one side wall of the cavity, a slider is fixedly connected to one side wall of the mounting seat, and the slider is slidably connected to the slide rail.

[0011] Preferably, a screw is rotatably connected to the side wall of the detector body, the screw passes through the cavity and is rotatably connected to the side walls at both ends of the cavity, the screw is a bidirectional trapezoidal screw, one end of the screw is provided with a handle, and the handle is located on one side of the detector body.

[0012] Preferably, two mounting seats are provided, and the two mounting seats are fixedly connected to the two electrical measuring bent rods respectively. Electrical measuring terminals are provided inside the mounting seats. The electrical measuring bent rods are made of benign conductive metal material and are welded and fixed to the electrical measuring terminals inside the mounting seats.

[0013] Preferably, both mounting seats are fixedly connected with a lead screw, the inner wall thread profiles of the two lead screws are opposite, and the two lead screws are respectively threadedly connected to the two ends of the lead screw located inside the cavity.

[0014] Preferably, one end of the electrical measuring bent rod away from the mounting seat is fixedly connected with a spring, the material properties of the spring are the same as those of the electrical measuring bent rod, and the spring is in close contact with the electrical measuring bent rod.

[0015] A DC charging cabinet comprises a charging cabinet body and the above-mentioned temperature control detection device.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] 1. By overlapping two measuring bending rods at both ends of the thermistor, measuring the resistance value of the resistor, and starting the micro fan box and the electric heating tube inside the air duct, hot air blows to the resistor to be tested to heat the thermistor, and observe the change in the resistance value displayed on the display screen to detect whether the thermistor function is normal. The device is small, easy to carry, and simple to operate. The test results are intuitively reflected on the display screen.

[0018] 2. The measuring bending rod is fixedly connected through a mounting base, and a lead screw is provided on the mounting base. The distance between the two measuring bending rods can be adjusted by rotating the lead screw, so that it is suitable for measuring thermistors of different sizes.

[0019] 3. A spring is provided at the end of the measuring bending rod, which replaces the direct contact between the measuring bending rod and the two ends of the resistor to be measured, avoiding the problem of rigid collision with the resistor welding pins due to excessive operation, resulting in loose resistor welding. The spring is elastic, which can ensure stable contact with the pins at both ends of the resistor to be measured during the measurement process and is not easy to detach. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the detector body of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram from another angle;

[0023] Figure 3 This is a schematic diagram of the internal structure of the detector of the utility model;

[0024] Figure 4 for Figure 3 Exploded image;

[0025] Figure 5 This is a schematic diagram of the measurement circuit of the utility model.

[0026] In the figure: 1. detector body; 2. display screen; 3. operation button group; 4. charging slot; 5. micro fan box; 6. air duct; 7. slide groove; 8. electric measuring bending rod; 9. spring; 10. screw rod; 11. knob; 12. cavity; 13. slide rail; 14. mounting seat; 15. slider; 16. screw.

[0027] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0028] The following is a detailed description of a temperature control detection device and a DC charging cabinet provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0029] like Figure 1 and Figure 4 As shown, an embodiment of the utility model provides a temperature control detection device, including a detector body 1, a display screen 2 and an operation button group 3 are provided on the detector body 1, the top of the detector body 1 is movably connected with an electrical measuring bent rod 8, two electrical measuring bent rods 8 are provided, a micro fan box 5 and an air duct 6 are provided on the back of the detector body 1, the micro fan box 5 and the air duct 6 are interconnected, and an electric heating tube is provided inside the air duct 6; a DC charging cabinet, including a charging cabinet body and the above-mentioned temperature control detection device.

[0030] By lap-jointing two electric measuring bent rods 8 at both ends of the thermistor, measuring the resistance value of the resistor, cooperating with starting the electric heating tube inside the micro fan box 5 and the air duct 6, hot air is blown to the resistor to be measured, heating the thermistor, and observing the change of the resistance value displayed on the display screen 2, thereby detecting whether the thermistor function is normal. The circuit diagram of measuring the resistance value inside the detector body 1 is shown in FIG. Figure 5 As shown, the two electrical measuring terminals in the figure are electrically connected to the two electrical measuring bent rods 8 in the device respectively, and the reading displayed on the display screen 2 shows the ammeter reading in the figure.

[0031] In a further embodiment, the display screen 2 and the operation button group 3 are both located on the front of the detector body 1, the display screen 2 is an LED electronic screen, and the operation button group 3 includes a power on button, a power off button, a fan on / off button, and a heating tube on / off button.

[0032] The micro fan box 5 and the heating tube are turned on and off by operating the button group 3. After the resistance detection is completed, the heating tube is turned off, and the micro fan box 5 continuously delivers natural wind to the resistance under test through the air duct 6 to quickly cool down the resistance and restore it to normal working state.

[0033] In a further embodiment, a charging slot 4 is provided at the bottom of the detector body 1, and a slide groove 7 is provided at the top of the detector body 1. The slide groove 7 is slidably connected with the body of the electric measuring bending rod 8.

[0034] The detector body 1 is provided with two built-in power supplies, both of which are connected to an external power supply for charging through a charging slot 4. The measuring circuit is independent of the micro fan box 5 circuit and the heating tube circuit, so as to avoid interference with the measuring circuit voltage when the micro fan box 5 and the heating tube circuit are opened and closed, thereby affecting the measuring data.

[0035] In a further embodiment, a cavity 12 is opened inside the detector body 1 near the top, a mounting seat 14 is movably connected inside the cavity 12, a slide rail 13 is opened on one side wall of the cavity 12, a slider 15 is fixedly connected to one side wall of the mounting seat 14, and the slider 15 is slidably connected to the slide rail 13.

[0036] The slide rail 13 and the slider 15 cooperate to limit the position, thereby ensuring the linear movement of the two mounting seats 14.

[0037] In a further embodiment, a screw rod 10 is rotatably connected to the side wall of the detector body 1. The screw rod 10 passes through the cavity 12 and is rotatably connected to the side walls at both ends of the cavity 12. The screw rod 10 is a bidirectional trapezoidal screw rod 10. A handle 11 is provided at one end of the screw rod 10, and the handle 11 is located on one side of the detector body 1.

[0038] The handle 11 is fixedly connected to the screw rod 10 , so that the screw rod 10 can be easily operated and rotated.

[0039] In a further embodiment, two mounting seats 14 are provided, and the two mounting seats 14 are fixedly connected to two current measuring bent rods 8 respectively. An current measuring terminal is provided inside the mounting seat 14. The current measuring bent rod 8 is made of benign conductive metal material and is welded and fixed to the current measuring terminal inside the mounting seat 14.

[0040] The end of the measuring bending rod 8 is located along the air outlet of the air duct 6, which is convenient for blowing air to heat the resistor to be measured.

[0041] In a further embodiment, the two mounting seats 14 are both fixedly connected with lead screws 16 , the inner wall thread profiles of the two lead screws 16 are opposite, and the two ends of the lead screws 16 are respectively threadedly connected to the screw rod 10 located inside the cavity 12 .

[0042] The two mounting seats 14 are fixedly connected by a lead screw 16 , and when the lead screw 10 rotates, the two mounting seats 14 are driven to perform synchronous linear motion toward or away from each other, so that the spacing between the two electrical measuring bending rods 8 can be adjusted.

[0043] In a further embodiment, one end of the electrical measuring bending rod 8 away from the mounting seat 14 is fixedly connected to a spring 9 , and the material properties of the spring 9 are the same as those of the electrical measuring bending rod 8 , and the spring 9 is in close contact with the electrical measuring bending rod 8 .

[0044] By providing a spring 9 at the end of the current measuring bent rod 8, the direct contact between the current measuring bent rod 8 and the two ends of the resistor to be measured is replaced, thereby avoiding the problem of rigid collision with the resistor welding pins due to excessive operation amplitude, which leads to loosening of the resistor welding. In addition, the spring 9 has elasticity, which can ensure stable contact with the pins at both ends of the resistor to be measured during the measurement process and is not easy to fall off.

[0045] The technical solution provided by the utility model is to overlap two measuring bending rods 8 at both ends of the thermistor to measure the resistance value of the resistor, start the electric heating tube inside the micro fan box 5 and the air duct 6, blow hot air to the resistor to be measured, heat the thermistor, observe the change of the resistance value displayed on the display screen 2, so as to detect whether the thermistor function is normal. The device is small, easy to carry, and simple to operate. The detection result is intuitively reflected on the display screen 2; the measuring bending rod 8 is fixedly connected by a mounting seat 14, and a lead screw 16 is provided on the mounting seat 14. The mutual spacing of the two measuring bending rods 8 can be adjusted by rotating the lead screw 10, so that it is suitable for measuring thermistors of different sizes; a spring 9 is provided at the end of the measuring bending rod 8 to replace the direct contact between the measuring bending rod 8 and the two ends of the resistor to be measured, so as to avoid the problem of rigid collision of the resistor welding pins due to excessive operation amplitude, resulting in the problem of loose resistor welding, and the spring 9 has elasticity, so that it can ensure stable contact with the pins at both ends of the resistor to be measured during the measurement process, and it is not easy to fall off.

[0046] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A temperature control detection device, characterized in that: include: A detector body (1) is provided with a display screen (2) and an operation button group (3); the top of the detector body (1) is movably connected with an electric measuring bent rod (8), and two electric measuring bent rods (8) are provided; a micro fan box (5) and an air duct (6) are provided on the back of the detector body (1); the micro fan box (5) and the air duct (6) are connected to each other, and an electric heating tube is provided inside the air duct (6).

2. The temperature control detection device according to claim 1, characterized in that: The display screen (2) and the operating button group (3) are both located on the front of the detector body (1); the display screen (2) is an LED electronic screen; and the operating button group (3) includes a power on button, a power off button, a fan on / off button, and a heating tube on / off button.

3. The temperature control detection device according to claim 1, characterized in that: The bottom of the detector body (1) is provided with a charging slot (4), the top of the detector body (1) is provided with a slide groove (7), and the slide groove (7) is slidably connected with the rod body of the electric measuring bending rod (8).

4. The temperature control detection device according to claim 1, characterized in that: A cavity (12) is provided inside the detector body (1) near the top, a mounting seat (14) is movably connected inside the cavity (12), a slide rail (13) is provided on one side wall of the cavity (12), a slider (15) is fixedly connected to one side wall of the mounting seat (14), and the slider (15) is slidably connected to the slide rail (13).

5. The temperature control detection device according to claim 1, characterized in that: A screw rod (10) is rotatably connected to the side wall of the detector body (1), the screw rod (10) passes through the cavity (12) and is rotatably connected to the side walls at both ends of the cavity (12), the screw rod (10) is a bidirectional trapezoidal screw rod (10), one end of the screw rod (10) is provided with a rotary knob (11), and the rotary knob (11) is located on one side of the detector body (1).

6. The temperature control detection device according to claim 4, characterized in that: Two mounting seats (14) are provided, and the two mounting seats (14) are respectively fixedly connected to the two electric measuring bent rods (8). An electric measuring terminal is provided inside the mounting seat (14). The electric measuring bent rod (8) is made of a good conductive metal material and is welded and fixed to the electric measuring terminal inside the mounting seat (14).

7. The temperature control detection device according to claim 4, characterized in that: The two mounting seats (14) are both fixedly connected with a lead screw (16), the inner wall thread profiles of the two lead screws (16) are opposite, and the two ends of the lead screw (10) located inside the cavity (12) are respectively threadedly connected.

8. The temperature control detection device according to claim 1, characterized in that: One end of the electric measuring bent rod (8) away from the mounting seat (14) is fixedly connected with a spring (9); the spring (9) has the same material properties as the electric measuring bent rod (8) and is in close contact with the electric measuring bent rod (8).

9. A DC charging cabinet, comprising a charging cabinet body, characterized in that: The invention comprises the temperature control detection device as described in any one of claims 1 to 8.

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