A new energy vehicle oxygen sensor heating furnace

Abstract

The invention discloses a new energy vehicle oxygen sensor heating furnace, which relates to the technical field of oxygen sensor heating furnaces, comprising a furnace body, a heater being arranged in the furnace body, a fan module being arranged on one side of the heater, the fan module being used for drawing in air heated by the heater and then blowing it into the furnace body; a cooling module is also arranged on the outside of the furnace body, so as to cool down the outside air and input it into the furnace body; an exhaust pipe is also arranged on the furnace body, an adjusting mechanism is arranged in the exhaust pipe, and the adjusting mechanism is used for adjusting the exhaust pipe to be opened or closed; the invention does not need to transfer the heated oxygen sensor to a cooling device for cooling, and rapid cooling can be achieved in the furnace body, thereby improving the product production quality and having higher efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of oxygen sensor heating furnaces, and in particular to a new energy vehicle oxygen sensor heating furnace. Background Art

[0002] The oxygen sensor of new energy vehicles is a key feedback sensor in the electronic fuel injection engine control system, and plays a vital role in maintaining the optimal air-fuel ratio of the engine, optimizing fuel efficiency and reducing emissions.

[0003] During the production and processing of oxygen sensors, glass conductor materials (such as quartz rings) are required to seal the sensor body and the metal shell together to ensure that they can remain completely sealed even under high-temperature working conditions. In the specific application process, the glass conductor material is first filled into the gap between the sensor body and the metal shell, and then melted at high temperature and cooled and solidified to make the two tightly combined; in this process, an oxygen sensor heating furnace is usually required;

[0004] The oxygen sensor needs to be cooled quickly after being heated to the preset temperature. Rapid cooling helps to quickly stabilize the microstructure of the material and prevent its performance from degrading or aging due to being in a high temperature state for a long time. This ensures that the packaged oxygen sensor has stable performance and a long service life when working.

[0005] In the prior art, during the packaging process of the oxygen sensor, it is first placed in a heating furnace and heated to a preset temperature to achieve high-temperature melting, and then transferred to a cooling box for cooling and solidification. The transfer process takes a certain amount of time, so it is difficult to achieve the effect of rapid cooling and solidification, which in turn affects the quality of the oxygen sensor. Summary of the invention

[0006] The purpose of the present invention is to provide a new energy vehicle oxygen sensor heating furnace to solve the following technical problems:

[0007] It is difficult for the oxygen sensor in the prior art to achieve a rapid cooling effect after being exposed to high temperature.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A new energy vehicle oxygen sensor heating furnace comprises a furnace body, a heater is arranged in the furnace body, a fan module is arranged on one side of the heater, and the fan module is used to draw air heated by the heater and then blow it into the furnace body;

[0010] A cooling module is also arranged outside the furnace body to cool the outside air and then input it into the furnace body;

[0011] Wherein, an exhaust pipe is also arranged on the furnace body, and an adjusting mechanism is arranged in the exhaust pipe, and the adjusting mechanism is used to adjust the opening or closing of the exhaust pipe.

[0012] Preferably, a heating box is fixedly arranged in the furnace body, and the heater comprises a plurality of groups of high-temperature heating tubes evenly arranged in the heating box;

[0013] Among them, a return air port is opened on one side wall of the heating box, and an air inlet is opened on the side of the heating box close to the fan module.

[0014] Preferably, the fan module includes a wind box arranged on one side of the heating box, a first fan volute and a second fan volute are arranged in the wind box along the vertical direction, two groups of air inlets are arranged on the heating box, the first fan volute and the second fan volute are respectively connected to the air inlet, impellers are rotatably arranged in the first fan volute and the second fan volute, and the impellers are fixed to the output end of the servo motor fixedly arranged on the outside of the furnace body;

[0015] Wherein, a first air outlet is provided on one side of the first fan volute, and a second air outlet is provided on one side of the second fan volute. The first air outlet and the second air outlet are independently located on two sides of the furnace body.

[0016] Preferably, the cooling module is connected to the furnace body through a cooling pipe, and the cooling pipe and the cooling module are connected through a flexible pipe.

[0017] Preferably, a cooling circular groove is provided on the side wall of the furnace body, the cooling pipe extends into the cooling circular groove, a first cover body connected to the cooling pipe is fixedly arranged in the cooling circular groove, the outer edge of the first cover body is in contact with the groove wall of the cooling circular groove, the other end of the first cover body is fixed to the first air inlet cylinder, the first air holes are evenly provided on the cylinder wall of the first air inlet cylinder, and a sealing disk is slidably embedded in the other end of the first air inlet cylinder;

[0018] Among them, a second air inlet tube is also slidably sleeved on the first air inlet tube, and a plurality of groups of second air holes are evenly arranged on the tube wall of the second air inlet tube, and the second air holes and the first air holes are staggered along the axial direction, and the second air inlet tube is fixed to the second cover body on the side close to the cooling pipe, and a baffle is fixedly arranged on the end of the second air inlet tube away from the second cover body, and the outer edge of the second cover body is slidably fitted with the groove wall of the cooling circular groove, and a plurality of groups of guide rods slidably connected to the second cover body are fixedly arranged in a circumferential array on the first cover body, and telescopic springs are provided on the guide rods.

[0019] Preferably, a plurality of groups of slide grooves are provided in a circumferential array on the inner cylinder wall of the first air inlet cylinder, and a slide seat slidably connected to the slide grooves is correspondingly fixedly arranged on the outer edge surface of the sealing disk.

[0020] Preferably, one end of the cooling module away from the furnace body is connected to an air supply device, and a filter is also provided at the air inlet end of the air supply device.

[0021] Preferably, a circulating air blowing pipe is provided in the furnace body, a circulating air blowing port is opened at the bottom of the circulating air blowing pipe, the circulating air blowing port is arranged above the side of the furnace body away from the return air port, the first air outlet is connected to the circulating air blowing pipe through the first air supply duct, and the second air outlet is connected to the circulating air blowing pipe through the second air supply duct.

[0022] Preferably, a first circulation air outlet connected to the first air outlet is formed at one end of the first air supply duct, a second circulation air outlet connected to the second air outlet is formed at one end of the second air supply duct, a first air outlet is formed at the other end of the first air supply duct, and a second air outlet is formed at the other end of the second air supply duct;

[0023] Wherein, a circulating air inlet which is synchronously connected with the first air outlet and the second air outlet is provided on the circulating air blowing pipe.

[0024] Preferably, the second air supply duct is also provided with an external circulation air outlet connected to the exhaust pipe.

[0025] Beneficial effects of the present invention:

[0026] (1) When the oxygen sensor of the present invention is in a normal heating state, the regulating mechanism adjusts the exhaust pipe to be in a closed state, and the heater and the fan module cooperate to realize the heating internal circulation of the furnace body. When the temperature rises to 720°C, the quartz ring melts and fills between the metal tube shell and the sensor. Then the heater is turned off and the cooling module is turned on. At the same time, the regulating mechanism adjusts the exhaust pipe to open, and the fan module and the cooling module cooperate to realize the cooling external circulation, and the furnace body is cooled and cooled, thereby achieving a rapid cooling effect. Accordingly, the present invention does not need to transfer the heated oxygen sensor to the cooling equipment for cooling, and can achieve rapid cooling in the furnace body, thereby improving the product production quality and being more efficient;

[0027] (2) The present invention arranges two sets of impellers in the furnace body along the vertical direction, so that during the exhaust process, the two sets of servo motors can be synchronously started to drive the impellers to rotate, and the heated air in the heating box can be drawn into the first fan volute and the second fan volute along the two sets of air inlets, and finally blown out through the first air outlet and the second air outlet, respectively. In this process, the contact time between the air in the heating box and the high-temperature heating tube can be further extended, and the upper and lower parts of the high-temperature heating tube can be fully utilized to further improve the heating effect. In addition, by arranging two sets of impellers for exhaust, the fan module can have sufficient air volume to ensure temperature uniformity.

[0028] (3) In the present invention, when the cooling module is not turned on, the second air hole and the first air hole are in an axially offset sealed state, and the hot air in the furnace body will not pass through the second air hole and the first air hole into the cooling pipe. When the cooling module is turned on, as the cooling module delivers cooling air to the cooling pipe, the wind pressure in the first air inlet tube increases, which can push the sealing plate to slide in the direction away from the cooling pipe. During the sliding process, the second air inlet tube can be pushed to move synchronously until the second air hole is connected to the first air hole and stops moving. At this time, the cooling air can be discharged into the cooling circular groove along the second air hole and the first air hole, and finally input into the furnace body. During the movement, the second cover body can compress the telescopic spring to generate elastic force, so as to drive the second air inlet tube to reset after the subsequent cooling is completed;

[0029] (4) The first air inlet duct and the first cover body as well as the second air inlet duct and the second cover body in the present invention are all made of stainless steel, which has a heat insulation effect and can reduce the high temperature of 720°C to 100°C without affecting the flexible tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 It is a structural schematic diagram of a heating furnace for an oxygen sensor of a new energy vehicle according to the present invention;

[0032] Figure 2 This is a schematic diagram of the internal structure of a heating furnace for an oxygen sensor for a new energy vehicle according to the present invention;

[0033] Figure 3 It is a structural schematic diagram of a fan volute in a heating furnace of an oxygen sensor for a new energy vehicle of the present invention;

[0034] Figure 4 It is a structural schematic diagram of hot air circulation in a heating furnace of an oxygen sensor for a new energy vehicle of the present invention;

[0035] Figure 5 It is a structural schematic diagram of a heating box in a heating furnace of an oxygen sensor for a new energy vehicle of the present invention;

[0036] Figure 6 It is a structural schematic diagram of an air supply duct in a heating furnace of an oxygen sensor for a new energy vehicle of the present invention;

[0037] Figure 7 It is a structural schematic diagram of a circulating air inlet in a heating furnace of an oxygen sensor for a new energy vehicle of the present invention;

[0038] Figure 8 It is a structural schematic diagram of an oxygen sensor positioning frame in a heating furnace for an oxygen sensor of a new energy vehicle according to the present invention;

[0039] Fig. 9 It is a structural schematic diagram of a heater in a heating furnace of an oxygen sensor for a new energy vehicle of the present invention;

[0040] Fig.10 It is a structural schematic diagram of an air outlet in a heating furnace of an oxygen sensor for a new energy vehicle of the present invention;

[0041] Fig.11 It is a structural schematic diagram of a circulating air inlet in a heating furnace of an oxygen sensor for a new energy vehicle of the present invention;

[0042] Fig.12 It is a structural schematic diagram of a first cylinder in a heating furnace for an oxygen sensor for a new energy vehicle according to the present invention;

[0043] Fig.13 It is a schematic diagram of the cross-sectional structure of the first cylinder in a heating furnace for an oxygen sensor for a new energy vehicle according to the present invention;

[0044] Fig.14 The present invention Fig.13 Schematic diagram of the structure of the enlarged part at A in the middle.

[0045] In the figure: 1, furnace body; 2, cooling module; 3, servo motor; 4, bellows; 5, first air supply duct; 6, second air inlet; 101, furnace door; 102, exhaust pipe; 103, oxygen sensor positioning frame; 104, cooling round groove; 201, air supply equipment; 202, cooling pipe; 203, flexible pipe; 301, impeller; 302, heater; 303, high temperature heating pipe; 304, heating box; 305, air inlet; 306, return air outlet; 401, second fan volute; 402, first fan volute; 403, first air outlet; 404, Second air outlet duct; 405, circulating air inlet; 406, first circulating air outlet; 407, second circulating air outlet; 408, circulating air blowing outlet; 409, circulating air blowing pipe; 501, second air supply duct; 502, external circulating air outlet; 503, second air outlet; 504, first air outlet; 601, second air vent; 602, second cover body; 603, first cover body; 604, first air inlet tube; 605, first air vent; 606, guide rod; 607, telescopic spring; 608, baffle plate; 609, sealing plate; 610, slide groove; 611, slide seat. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] Example 1

[0048] See also Figure 1 and Figure 2 As shown, the present invention is a new energy vehicle oxygen sensor heating furnace, comprising a furnace body 1, a heater 302 is arranged in the furnace body 1, a fan module is arranged on one side of the heater 302, and the fan module is used to draw air heated by the heater 302 and then blow it into the furnace body 1; specifically, a furnace door 101 is arranged on one side of the furnace body 1 in this embodiment, and when it is opened, it is convenient to place the oxygen sensor positioning frame 103 in the furnace body 1, and correspondingly, when heating, the furnace door 101 is closed to achieve a closed effect;

[0049] It should be noted that the oxygen sensor component to be packaged is first placed on the oxygen sensor positioning frame 103, and then the oxygen sensor positioning frame 103 is placed in the furnace body 1, and then the heater 302 and the fan module are started. The fan module draws in the air heated by the heater 302 and blows it into the furnace body 1. Through the internal circulation of the furnace body 1, it circulates to the return air chamber at the rear heater 302. The return air is heated by the heater 302 again and sucked into the fan module for the next cycle. This reciprocating process can evenly heat the furnace body 1.

[0050] In the present embodiment, a cooling module 2 is further arranged on the outside of the furnace body 1, so as to cool down the outside air and input it into the furnace body 1; specifically, the cooling module 2 of the present embodiment is a water-cooled heat exchanger, and the cooling module 2 is connected to the furnace body 1 through a cooling pipe 202. Specifically, the cooling pipe 202 of the present embodiment is a metal pipe; it should be noted that when cooling the furnace body 1, the cooling module 2 is turned on to input the cooled air into the furnace body 1.

[0051] Among them, an exhaust chimney 102 is also arranged on the furnace body 1, and an adjustment mechanism is provided in the exhaust chimney 102, and the adjustment mechanism is used to adjust the exhaust chimney 102 to open or close; specifically, the adjustment mechanism of this embodiment can adopt a valve or a telescopic plate structure, which is not limited.

[0052] It can be explained that when the oxygen sensor is in a normal heating state, the regulating mechanism adjusts the exhaust pipe 102 to be in a closed state, and the heater 302 cooperates with the fan module to realize the internal heating circulation of the furnace body 1. When the temperature is raised to 720°C, the quartz ring melts and fills between the metal tube shell and the sensor. Then the heater 302 is turned off and the cooling module 2 is turned on. At the same time, the regulating mechanism adjusts the exhaust pipe 102 to open, and the fan module cooperates with the cooling module 2 to realize the cooling external circulation, and the furnace body 1 is cooled and cooled, thereby achieving a rapid cooling effect. Accordingly, this embodiment does not need to transfer the heated oxygen sensor to the cooling equipment for cooling, and rapid cooling can be achieved in the furnace body 1, thereby improving the product production quality and higher efficiency.

[0053] Example 2

[0054] Based on Example 1, please refer to Figure 2 , Figure 5 as well as Fig. 9 A heating box 304 is fixedly arranged in the furnace body 1, and the heater 302 includes a plurality of groups of high-temperature heating tubes 303 uniformly arranged in the heating box 304, wherein a return air port 306 is provided on one side wall of the heating box 304, and an air inlet 305 is provided on the side of the heating box 304 close to the fan module; it can be explained that the heater 302 in this embodiment heats up and generates heat through the plurality of groups of high-temperature heating tubes 303, and the heated air is drawn out by the fan module through the air inlet 305, and the air blown into the furnace body 1 finally enters the heating box 304 again through the return air port 306 for heating, and the cycle continues.

[0055] In this example, see Figure 3-Figure 5 The fan module includes a wind box 4 arranged on one side of the heating box 304, and a first fan volute 402 and a second fan volute 401 are arranged in the wind box 4 along the vertical direction respectively. Two groups of air inlets 305 are arranged on the heating box 304, and the first fan volute 402 and the second fan volute 401 are respectively connected with the air inlet 305, and the first fan volute 402 and the second fan volute 401 are respectively rotatably arranged with impellers 301, and the impellers 301 are fixed to the output end of the servo motor 3 fixedly arranged on the outside of the furnace body 1, and a first air outlet 403 is provided on one side of the first fan volute 402, and a second air outlet 404 is provided on one side of the second fan volute 401, and the first air outlet 403 and the second air outlet 404 are respectively and independently located on both sides of the furnace body 1;

[0056] In addition, in this embodiment, both sets of impellers 301 are centrifugal fan blades, and the output power is 3000W; so that the fan module has sufficient air volume to ensure temperature uniformity.

[0057] It can be explained that in this embodiment, two groups of impellers 301 are arranged in the furnace body 1 along the vertical direction, so that during the exhaust process, the two groups of servo motors 3 can be started synchronously to drive the impellers 301 to rotate, and the heated air in the heating box 304 can be drawn into the first fan volute 402 and the second fan volute 401 along the two groups of air inlets 305, respectively, and finally can be blown out through the first air outlet 403 and the second air outlet 404, respectively. In this process, the contact time between the air in the heating box 304 and the high-temperature heating tube 303 can be further extended, the upper and lower parts of the high-temperature heating tube 303 can be fully utilized, and the heating effect can be further improved. In addition, by setting two groups of impellers 301 for exhaust, the fan module can have sufficient air volume to ensure temperature uniformity.

[0058] In this embodiment, the cooling module 2 will resonate with the furnace body 1 when delivering cooling air to the furnace body 1. Therefore, in order to avoid the influence of vibration on the solidification of the glass conductor material, please refer to Figure 2 The cooling tube 202 is connected to the cooling module 2 via a flexible tube 203. The flexible tube 203 of this embodiment is made of silicone rubber.

[0059] Accordingly, since the furnace body 1 can reach a temperature of 720°C when heated, the heat radiation can easily pass through the cooling tube 202 to affect the flexible tube 203. In this embodiment, please refer to Figure 2 as well as Figure 12-14 A cooling circular groove 104 is provided on the side wall of the furnace body 1, and the cooling pipe 202 extends into the cooling circular groove 104. A first cover body 603 connected to the cooling pipe 202 is fixedly arranged in the cooling circular groove 104. The outer edge of the first cover body 603 is in contact with the groove wall of the cooling circular groove 104. The other end of the first cover body 603 is fixed to the first air inlet cylinder 604. First air holes 605 are evenly provided on the cylinder wall of the first air inlet cylinder 604. A sealing disk 609 is slidably embedded on the other end of the first air inlet cylinder 604. A second air inlet cylinder 6 is also slidably sleeved on the first air inlet cylinder 604. A plurality of groups of second air holes 601 are evenly provided on the cylinder wall of the second air inlet cylinder 6. The second air holes 601 are connected to the first air inlet cylinder 604. An air vent 605 is staggered along the axial direction, the second air inlet tube 6 is fixed to the second cover body 602 on the side close to the cooling pipe 202, a baffle 608 is fixedly arranged on the end of the second air inlet tube 6 away from the second cover body 602, the outer edge of the second cover body 602 is slidingly fitted with the groove wall of the cooling circular groove 104, and a plurality of groups of guide rods 606 slidingly connected to the second cover body 602 are fixedly arranged in a circumferential array on the first cover body 603, and a telescopic spring 607 is provided on the guide rod 606; specifically, one end of the telescopic spring 607 is fixed to the second cover body 602, and the other end is fixed to the end of the guide rod 606; this embodiment can effectively isolate heat radiation by arranging the first air inlet tube 604 and the second air inlet tube 6.

[0060] It can be explained that when the cooling module 2 is not turned on, the second air hole 601 and the first air hole 605 are in an axially offset sealed state, and the hot air in the furnace body 1 will not pass through the second air hole 601 and the first air hole 605 to enter the cooling pipe 202. When the cooling module 2 is turned on, as the cooling module 2 delivers cooling air to the cooling pipe 202, the wind pressure in the first air inlet cylinder 604 increases, which can push the sealing plate 609 to slide in the direction away from the cooling pipe 202. During the sliding process, the second air inlet cylinder 6 can be pushed to move synchronously until the second air hole 601 and the first air hole 605 are connected and stop moving. At this time, the cooling air can be discharged into the cooling circular groove 104 along the second air hole 601 and the first air hole 605, and finally input into the furnace body 1. During the movement, the second cover body 602 can compress the telescopic spring 607 to generate elastic force, so as to drive the second air inlet cylinder 6 to reset after the subsequent cooling is completed.

[0061] It should also be noted that the first air inlet 604 and the first cover 603 as well as the second air inlet 6 and the second cover 602 of this embodiment are all made of stainless steel, which has a heat insulation effect and can reduce the high temperature of 720°C to 100°C without affecting the flexible tube 203.

[0062] In addition, in the present embodiment, a plurality of groups of slide grooves 610 are provided in a circumferential array on the inner cylinder wall of the first air inlet cylinder 604, and a slide seat 611 slidably connected to the slide groove 610 is correspondingly fixedly arranged on the outer edge surface of the sealing disk 609; it can be explained that when the sealing disk 609 slides, it can synchronously drive the slide seat 611 to slide in the slide groove 610, so as to achieve a guiding effect on the sealing disk 609 and make its movement stability higher.

[0063] See also Figure 1 The end of the cooling module 2 away from the furnace body 1 is connected to the air supply device 201, and a filter is also provided at the air inlet end of the air supply device 201; specifically, when cooling the furnace body 1, the air supply device 201 and the cooling module 2 are started, and the air supply device 201 inputs the outside air into the cooling pipe 202 through the cooling module 2.

[0064] As a further solution of this embodiment, please refer to Figure 4-Figure 8 as well as Figure 10-11, a circulating blowing pipe 409 is provided in the furnace body 1, and a circulating blowing port 408 is provided at the bottom of the circulating blowing pipe 409, and the circulating blowing port 408 is arranged above the side of the furnace body 1 away from the return air port 306, the first air outlet 403 is connected to the circulating blowing pipe 409 through the first air supply duct 5, and the second air outlet 404 is connected to the circulating blowing pipe 409 through the second air supply duct 501; it can be explained that after the heated air is drawn into the first fan volute 402 and the second fan volute 401 respectively through the air inlet 305, the high-temperature air in the first fan volute 402 is successively transported to the circulating blowing pipe 409 through the first air outlet 403 and the first air supply duct 5, and the high-temperature air in the second fan volute 401 is successively transported to the circulating blowing pipe 409 through the second air outlet 404 and the second air supply duct 501, and finally blown out through the circulating blowing port 408;

[0065] By setting two sets of fan volutes, this embodiment can improve the utilization rate of the heating tube 303 on the one hand, and maximize the utilization of the space of the bellows 4 on the other hand. If one or three sets of fan volutes are set, the effect of this embodiment cannot be achieved.

[0066] Specifically, in this embodiment, one end of the first air supply duct 5 is provided with a first circulation air port 406 connected to the first air outlet 403, one end of the second air supply duct 501 is provided with a second circulation air port 407 connected to the second air outlet 404, the other end of the first air supply duct 5 is provided with a first air outlet 504, and the other end of the second air supply duct 501 is provided with a second air outlet 503, wherein the circulation blowing pipe 409 is provided with a first air outlet 504 and a second air outlet 503 synchronously connected. Circulating air inlet 405; it can be explained that the high-temperature air in the first air outlet 403 enters the first air supply duct 5 through the first circulating air outlet 406, and then is input into the circulating blowing pipe 409 through the first air outlet 504 and the circulating air inlet 405; the high-temperature air in the second air outlet 404 is sent into the second air supply duct 501 through the second circulating air outlet 407, and then is input into the circulating blowing pipe 409 through the second air outlet 503 and the circulating air inlet 405, thereby realizing the effect of two-way transportation.

[0067] Furthermore, in order to quickly dissipate the heat inside the furnace body 1 during cooling, in this embodiment, please refer to Figure 5-Figure 6 The second air supply duct 501 is also provided with an external circulation air outlet 502 connected to the exhaust pipe 102; it can be explained that when the cold cycle is carried out, after the exhaust pipe 102 is opened, since the exhaust pipe 102 is directly connected to the second air supply duct 501, the cold cycle rate can be adjusted by adjusting the output power of the servo motor 3 located below.

[0068] A working method of a new energy vehicle oxygen sensor heating furnace comprises the following steps:

[0069] See also Figure 1-Figure 4 S1, firstly place the oxygen sensor component to be packaged on the oxygen sensor positioning frame 103, and then place the oxygen sensor positioning frame 103 in the furnace body 1;

[0070] S2, start the heater 302 and the fan module, the fan module draws the air heated by the heater 302 and blows it into the furnace body 1, circulates through the internal circulation of the furnace body 1, circulates to the return air chamber at the rear heater 302, and the return air is heated by the heater 302 again, sucked into the fan module, and then circulates next time;

[0071] S3. When the temperature rises to 720°C, the quartz ring melts and fills the space between the metal tube shell and the sensor. Then the heater 302 is turned off and the cooling module 2 is turned on. At the same time, the regulating mechanism adjusts the exhaust pipe 102 to open, and the fan module and the cooling module 2 cooperate to realize the cooling external circulation to cool the furnace body 1.

[0072] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0073] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A new energy vehicle oxygen sensor heating furnace, comprising a furnace body (1), characterized in that: A heater (302) is provided in the furnace body (1), and a fan module is provided on one side of the heater (302), the fan module being used to draw air heated by the heater (302) and then blow it into the furnace body (1); A cooling module (2) is also arranged outside the furnace body (1) to cool the outside air and then input it into the furnace body (1); Wherein, an exhaust pipe (102) is also arranged on the furnace body (1), and an adjustment mechanism is provided in the exhaust pipe (102), and the adjustment mechanism is used to adjust the exhaust pipe (102) to be opened or closed; The cooling module (2) is connected to the furnace body (1) via a cooling pipe (202); A cooling circular groove (104) is provided on the side wall of the furnace body (1), and the cooling pipe (202) extends into the cooling circular groove (104). A first cover body (603) connected to the cooling pipe (202) is fixedly arranged in the cooling circular groove (104). The outer edge of the first cover body (603) is in contact with the groove wall of the cooling circular groove (104). The other end of the first cover body (603) is fixed to the first air inlet cylinder (604). First air holes (605) are evenly provided on the cylinder wall of the first air inlet cylinder (604). A sealing disk (609) is slidably embedded in the other end of the first air inlet cylinder (604). A second air inlet cylinder (6) is also slidably sleeved on the first air inlet cylinder (604). A plurality of groups of second air holes (601) are evenly arranged on the wall of the second air inlet tube (6), and the second air holes (601) and the first air holes (605) are staggered along the axial direction. The second air inlet tube (6) is fixed to the second cover body (602) on the side close to the cooling pipe (202), and a baffle (608) is fixedly arranged on the end of the second air inlet tube (6) away from the second cover body (602). The outer edge of the second cover body (602) is slidably fitted with the groove wall of the cooling circular groove (104), and a plurality of groups of guide rods (606) slidably connected to the second cover body (602) are fixedly arranged in a circumferential array on the first cover body (603), and a telescopic spring (607) is provided on the guide rod (606).

2. The new energy vehicle oxygen sensor heating furnace according to claim 1 is characterized in that: A heating box (304) is fixedly arranged in the furnace body (1), and the heater (302) comprises a plurality of groups of high-temperature heating tubes (303) uniformly arranged in the heating box (304); A return air port (306) is provided on one side wall of the heating box (304), and an air inlet (305) is provided on a side of the heating box (304) facing the fan module.

3. The new energy vehicle oxygen sensor heating furnace according to claim 2 is characterized in that: The fan module comprises a wind box (4) arranged on one side of the heating box (304), a first fan volute (402) and a second fan volute (401) are arranged in the wind box (4) along the vertical direction, two groups of air inlets (305) are arranged on the heating box (304), the first fan volute (402) and the second fan volute (401) are communicated with the air inlets (305) respectively, impellers (301) are rotatably arranged in the first fan volute (402) and the second fan volute (401), and the impellers (301) are fixed to the output end of a servo motor (3) fixedly arranged on the outside of the furnace body (1); A first air outlet duct (403) is provided on one side of the first fan volute (402), and a second air outlet duct (404) is provided on one side of the second fan volute (401), and the first air outlet duct (403) and the second air outlet duct (404) are independently located on two sides of the furnace body (1).

4. The new energy vehicle oxygen sensor heating furnace according to claim 1, characterized in that: The cooling pipe (202) and the cooling module (2) are connected via a flexible pipe (203).

5. The new energy vehicle oxygen sensor heating furnace according to claim 1, characterized in that: A plurality of groups of slide grooves (610) are provided in a circumferential array on the inner cylinder wall of the first air inlet cylinder (604), and a slide seat (611) slidably connected to the slide grooves (610) is correspondingly fixedly arranged on the outer edge surface of the sealing disk (609).

6. The new energy vehicle oxygen sensor heating furnace according to claim 1, characterized in that: One end of the cooling module (2) away from the furnace body (1) is connected to an air supply device (201), and a filter is also provided at the air inlet end of the air supply device (201).

7. The new energy vehicle oxygen sensor heating furnace according to claim 3 is characterized in that: A circulating air blowing pipe (409) is provided in the furnace body (1), a circulating air blowing port (408) is provided at the bottom of the circulating air blowing pipe (409), and the circulating air blowing port (408) is arranged above a side of the furnace body (1) away from the return air port (306); the first air outlet (403) is connected to the circulating air blowing pipe (409) via a first air supply duct (5), and the second air outlet (404) is connected to the circulating air blowing pipe (409) via a second air supply duct (501).

8. The new energy vehicle oxygen sensor heating furnace according to claim 7, characterized in that: A first circulation air port (406) connected to the first air outlet (403) is provided at one end of the first air supply duct (5), a second circulation air port (407) connected to the second air outlet (404) is provided at one end of the second air supply duct (501), a first air outlet (504) is provided at the other end of the first air supply duct (5), and a second air outlet (503) is provided at the other end of the second air supply duct (501); The circulating air blowing pipe (409) is provided with a circulating air inlet (405) which is synchronously connected to the first air outlet (504) and the second air outlet (503).

9. The new energy vehicle oxygen sensor heating furnace according to claim 8, characterized in that: The second air supply duct (501) is also provided with an external circulation air outlet (502) which is connected to the exhaust pipe (102).

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