Humidifier breathing tube heating cable assembly, humidifier cable assembly and humidifier

Abstract

The utility model relates to the field of humidifiers, in particular to a humidifier breathing tube heating cable assembly, a humidifier cable assembly and a humidifier. The temperature measuring element used for detecting the environment temperature is arranged on the corresponding cable of the humidifier, the influence of heating of a main machine of the humidifier on temperature detection is reduced or avoided, the temperature measuring element is arranged on the positioning seat, the relative position of the cable and the temperature measuring element can be guaranteed through the first positioning structure and the second positioning structure on the positioning seat, and the temperature measuring effect is improved. Under the condition that the relative position of the cable and the temperature measuring element is determined, the influence of cable heating on the detection result of the temperature measuring element can be obtained in advance and is relatively constant, so that the influence of cable heating on the detection result of the temperature measuring element can be removed from the detection value of the temperature measuring element, and the relatively real and accurate environment temperature can be obtained; and the consistency of detection results when different cable assemblies are used is improved. The humidifier mainly solves the technical problem that the consistency of environment temperature detection results is not easy to guarantee when the humidifier detects the environment temperature.

Description

Technical Field

[0001] The utility model relates to the field of humidifiers, and in particular to a humidifier breathing tube heating cable assembly, a humidifier cable assembly and a humidifier. Background Art

[0002] The end of the breathing tube connected to the humidifier generally needs to be connected to an extension tube, and the end of the extension tube is used to connect to the patient's mouth. If you want to predict the temperature of the gas inhaled by the patient at the end of the extension tube, you can use the temperature probe at the end of the breathing tube to measure the gas temperature inside the end of the breathing tube, and then obtain the external environment temperature, and then predict it through an empirical formula.

[0003] In order to detect the ambient temperature, considering that the measured ambient temperature needs to be processed by the humidifier host, the temperature measuring element for detecting the ambient temperature is set on the humidifier host so that the connection of the temperature measuring element can be realized more conveniently. However, the humidifier host generates serious heat when working, and the temperature measuring element for detecting the ambient temperature is set on the humidifier host, which easily leads to inaccurate ambient temperature detection value.

[0004] The humidifier host is connected to a cable assembly, which generates less heat. You can consider connecting the temperature measuring element to the cable assembly. However, the test found that the temperature detection results were inconsistent when using different cable assemblies. Utility Model Content

[0005] The utility model mainly solves the technical problem that it is difficult to ensure the consistency of the ambient temperature detection result when a humidifier detects the ambient temperature.

[0006] In a first aspect, the utility model provides a humidifier breathing tube heating cable assembly.

[0007] A humidifier breathing tube heating cable assembly, comprising:

[0008] Cables;

[0009] A positioning seat, the positioning seat is connected to the cable, the positioning seat is provided with a first positioning structure, and the cable is positioned on the positioning seat by the first positioning structure;

[0010] and temperature measuring elements;

[0011] The positioning seat is provided with a second positioning structure, and the temperature measuring element is positioned on the positioning seat by the second positioning structure. The first positioning structure and the second positioning structure are respectively located on two opposite side surfaces of the positioning seat.

[0012] Optionally, the second positioning structure is arranged on an edge of the positioning seat.

[0013] Optionally, the temperature measuring element has a length direction, and the length direction of the portion of the cable located on the positioning seat is parallel to the length direction of the temperature measuring element.

[0014] Optionally, adhesive glue is included, and the adhesive glue is provided between the positioning seat and the temperature measuring element, and / or the adhesive glue is provided between the positioning seat and the cable.

[0015] Optionally, a hard injection molded body is included, and the positioning seat, the temperature measuring element and the portion of the cable positioned by the positioning seat are wrapped by the hard injection molded body.

[0016] Optionally, the first positioning structure includes a cable positioning groove, and the length direction of the portion of the cable located on the positioning seat is parallel to the length direction of the cable positioning groove.

[0017] Optionally, the cable includes a first cable, a second cable and a third cable, the second cable and the third cable are respectively connected to the first cable; the first cable includes a common core wire, a first branch core wire and a second branch core wire, the common core wire is respectively connected to the corresponding core wire of the second cable and the corresponding core wire of the third cable through a first connection point, the first branch core wire is connected to the corresponding core wire of the second cable through a second connection point, and the second branch core wire is connected to the corresponding core wire of the third cable through a third connection point;

[0018] The cable positioning groove includes a first wire groove and two second wire grooves, the first wire groove is arranged between the two second wire grooves, the first connection point is located in the first wire groove, the second connection point and the third connection point are respectively located in the two second wire grooves, and the temperature measuring element is staggered with the first wire groove along the distribution direction of the two second wire grooves.

[0019] Optionally, the second positioning structure is an embedding groove, and a shape of the embedding groove matches a shape of the temperature measuring element.

[0020] Optionally, the cable is interference fit with the first positioning structure, and / or the temperature measuring element is interference fit with the second positioning structure.

[0021] Optionally, the temperature measuring element is connected to a temperature measuring lead wire, the positioning seat is provided with a lead wire groove, the embedding groove is communicated with the lead wire groove, and the temperature measuring lead wire is positioned in the lead wire groove.

[0022] Optionally, it includes a host connector and a breathing tube connector, the host connector is used to connect to the humidifier host, the breathing tube connector is used to connect to the heating element on the breathing tube, the cable length between the positioning seat and the host connector is not less than 10 cm, and the cable length between the positioning seat and the breathing tube connector is not less than 10 cm.

[0023] Optionally, the material of the positioning seat is ABS or PP.

[0024] In a second aspect, the utility model provides a humidifier.

[0025] Humidifier, including:

[0026] A humidification tank, wherein the humidification tank is provided with an exhaust port, and the exhaust port is connected to a breathing tube;

[0027] A humidifier host, the humidifier tank is installed on the humidifier host, the humidifier host comprises a heating element, and the heating element is used to heat the liquid in the humidifier tank;

[0028] and a humidifier breathing tube heating cable assembly, the humidifier breathing tube heating cable assembly is used to connect between the heating element on the breathing tube and the humidifier host;

[0029] The humidifier breathing tube heating cable assembly is the humidifier breathing tube heating cable assembly described in any of the above technical solutions.

[0030] In a third aspect, the utility model provides a humidifier cable assembly.

[0031] A humidifier cable assembly, comprising:

[0032] Cables;

[0033] A positioning seat, the positioning seat is connected to the cable, the positioning seat is provided with a first positioning structure, and the cable is positioned on the positioning seat by the first positioning structure;

[0034] and temperature measuring elements;

[0035] The positioning seat is provided with a second positioning structure, and the temperature measuring element is positioned on the positioning seat by the second positioning structure.

[0036] Optionally, a heat insulation structure is provided between the cable and the temperature measuring element.

[0037] Optionally, the second positioning structure is arranged on an edge of the positioning seat.

[0038] Optionally, the temperature measuring element has a length direction, and the length direction of the portion of the cable located on the positioning seat is parallel to the length direction of the temperature measuring element.

[0039] Optionally, it includes a host connector and a breathing tube connector, the host connector is used to connect to the humidifier host, the breathing tube connector is used to connect to the heating element on the breathing tube, the cable length between the positioning seat and the host connector is not less than 10 cm, and the cable length between the positioning seat and the breathing tube connector is not less than 10 cm.

[0040] In a fourth aspect, the utility model provides another humidifier.

[0041] Humidifier, including:

[0042] A humidification tank, wherein the humidification tank is provided with an exhaust port, and the exhaust port is connected to a breathing tube;

[0043] A humidifier host, the humidifier tank is installed on the humidifier host, the humidifier host comprises a heating element, and the heating element is used to heat the liquid in the humidifier tank;

[0044] And a humidifier cable assembly, the humidifier cable assembly is used to be connected to the humidifier host; the humidifier cable assembly is the humidifier cable assembly described in any of the above technical solutions.

[0045] Beneficial effects of the utility model:

[0046] According to the above scheme, the temperature measuring element for detecting the ambient temperature is arranged on the corresponding cable of the humidifier, which is conducive to reducing or avoiding the influence of the heating of the humidifier host on the temperature detection, and the heat generated by the cable is small, which can reduce the influence on the accuracy of the ambient temperature measurement, and the temperature measuring element is arranged on the positioning seat, and the relative position of the cable and the temperature measuring element can be guaranteed by the first positioning structure and the second positioning structure on the positioning seat, and when the relative position of the cable and the temperature measuring element is determined, the influence of the heating of the cable on the detection result of the temperature measuring element can be obtained in advance and is relatively constant, so that the detection value of the temperature measuring element can be removed from the influence of the heating of the cable on the detection result of the temperature measuring element, so that a more real and accurate ambient temperature can be obtained, and the consistency of the detection results when using different cable assemblies can be improved. In some cases, the first positioning structure and the second positioning structure are located on two opposite sides of the positioning seat, and the positioning seat can be used to isolate the temperature measuring element and the cable from each other, which is more conducive to avoiding and reducing the influence of the heating of the cable and improving the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a structural schematic diagram of an embodiment of the humidifier in the utility model;

[0048] Figure 2 yes Figure 1 A schematic diagram of the structure of the humidifier breathing tube heating cable assembly;

[0049] Figure 3 yes Figure 1 Orthographic projection view of the front of the center positioning seat;

[0050] Figure 4 yes Figure 1 Orthographic projection view of the back side of the center positioning seat;

[0051] Figure 5 It is a schematic diagram of the molding step 1 at the positioning seat of the humidifier breathing tube heating cable assembly;

[0052] Figure 6 It is a schematic diagram of the second molding step at the positioning seat of the humidifier breathing tube heating cable assembly;

[0053] Figure 7 It is a schematic diagram of the molding step three at the positioning seat of the humidifier breathing tube heating cable assembly;

[0054] Figure 8 It is a schematic diagram of the fourth molding step at the positioning seat of the humidifier breathing tube heating cable assembly;

[0055] Fig. 9 It is a schematic diagram of the fifth step of molding at the positioning seat of the humidifier breathing tube heating cable assembly;

[0056] List of feature names corresponding to the reference numerals in the figure:

[0057] 100, ventilator; 110, gas supply port; 120, gas return port;

[0058] 210, humidification tank; 211, air inlet; 212, exhaust port;

[0059] 220, humidifier host;

[0060] 230. Humidifier breathing tube heating cable assembly;

[0061] 231. Host connector; 232. Breathing tube connector;

[0062] 233, first cable; 2331, common core wire; 2332, first branch core wire; 2333, second branch core wire; 234, second cable; 235, third cable;

[0063] 240, positioning seat; 241, first seat body portion; 242, second seat body portion; 243, third seat body portion; 244, first positioning structure; 2441, first wire groove; 2442, second wire groove; 245, second positioning structure; 246, first interval; 247, second interval;

[0064] 251, wire guide groove; 252, first cable anti-drop groove; 253, second cable anti-drop groove;

[0065] 261, first connection point; 262, second connection point; 263, third connection point;

[0066] 270, temperature measuring element; 271, temperature measuring lead;

[0067] 281, hard injection molding; 282, soft injection molding;

[0068] 310, air supply pipe; 320, air inlet pipe; 330, three-way joint; 340, extension pipe; 350, exhalation pipe; 360, end joint; 370, water inlet pipe;

[0069] 400. Temperature measuring cable assembly; 410. Terminal temperature probe. DETAILED DESCRIPTION

[0070] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0071] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0072] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0073] In the utility model, a positioning seat 240 is connected to the cable, and a positioning structure is provided on the positioning seat 240. The positioning structure can maintain a constant positional relationship between the temperature measuring element 270 and the portion of the cable located on the positioning seat 240, so that the influence of the heating of the cable on the temperature measuring element 270 is a certain value, thereby avoiding the uncertainty of the position of the temperature measuring element 270 and the cable in different cable assemblies affecting the final temperature detection result.

[0074] Embodiment of the humidifier in the utility model:

[0075] Please refer to Figure 1 In one embodiment, the humidifier includes a humidifier host 220, a humidifier tank 210, and a humidifier breathing tube heating cable assembly 230. The humidifier can be used in conjunction with the ventilator 100, and the gas supplied by the ventilator 100 is humidified and heated by the humidifier and then delivered to the patient end.

[0076] In a specific embodiment, the humidification tank 210 can be a water tank with an air inlet 211 and an air outlet 212. The air inlet 211 is connected to the gas supply port 110 of the ventilator 100 through the air supply pipe 310, and the gas supplied by the ventilator 100 can enter the humidification tank 210 through the air supply pipe 310. The exhaust port 212 of the humidification tank 210 can be connected to the inhalation pipe 320 when in use, and the inhalation pipe 320 is connected to one of the interfaces of the three-way joint 330. The other two interfaces of the three-way joint 330 are respectively connected to the extension tube 340 and the exhalation tube 350. The end of the extension tube 340 is provided with a terminal joint 360 for connecting to the patient end, and the terminal joint 360 can be connected to a breathing mask, etc., and the exhalation tube 350 is connected to the return port 120 of the ventilator 100, and the waste gas exhaled by the patient can be discharged through the exhalation tube 350 to keep the respiratory tract unobstructed. The humidification tank 210 may also be connected to a water inlet pipe 370, and the water inlet pipe 370 is used to supply the humidification tank 210 with water required for the humidifier to work.

[0077] The humidifier host 220 can provide an installation basis for the humidifier tank 210, so that the humidifier tank 210 is installed on the humidifier host 220, and the humidifier host 220 can include a heating element. The heating element can generally be arranged on the top of the humidifier host 220, and the top surface of the heating element can contact the bottom surface of the humidifier tank 210 and provide heat energy to the humidifier tank 210 by heat transfer, and then under the control of the control unit (such as the main control circuit board assembly), a corresponding heating temperature is generated to achieve the heating of the water in the humidifier tank 210, so that the water in the humidifier tank 210 meets the corresponding heating and humidification requirements. The heating method of the heating element is not limited, such as heating wire heating, heating block heating, electromagnetic induction heating, etc. The specific structure and control method of the heating element can adopt the existing technology, which will not be described in detail in the utility model.

[0078] During the operation of the humidifier, the temperature of the gas will decrease when it is transmitted in the air supply pipe 310 and the extension pipe 340, and condensed water may form on the pipe wall. In order to avoid these problems, the air supply pipe 310, the extension pipe 340 and / or the exhalation pipe 350 and other breathing pipes can be provided with pipe body heating elements as needed, for example, heating wires spirally arranged along the length of the pipes are provided, and the corresponding breathing pipes are heated to a certain temperature by the heating wires. The breathing pipe provided with the pipe body heating element can adopt the structure in the prior art, which will not be described in detail here. The breathing pipe can be a part of the humidifier, or it can be a matching component sold separately.

[0079] In one embodiment, the control unit of the humidifier host 220 can not only control the heating temperature of the humidification tank 210, but also control the heating of the breathing tube. In order to realize the heating control of the breathing tube, a humidifier breathing tube heating cable assembly 230 is arranged between the humidifier host 220 and the corresponding breathing tube, and the humidifier breathing tube heating cable assembly 230 includes a host connector 231 and a breathing tube connector 232, the host connector 231 is used to connect the humidifier host 220, and the breathing tube connector 232 is used to connect the tube body heating element on the breathing tube. The host connector 231 and the breathing tube connector 232 can realize the transmission of electric energy, so that the tube body heating element works and generates heat. It can be understood by those skilled in the art that the structural form of the host connector 231 and the breathing tube connector 232 is not limited, and a connector with a pin-and-socket structure, a connector with a shrapnel structure, etc. can be adopted. The number of conductive contacts used to realize circuit connection in the connector can be determined as needed. For example, for a tube body heating body that only needs to be connected to a positive lead and a negative lead, two conductive contacts of positive and negative electrodes can be arranged in the breathing tube connector 232. For these types of connectors, reference may be made to the prior art and will not be described in detail in this article.

[0080] The temperature of the gas for inhalation by the patient at the end of the extension tube 340 is predicted based on the terminal temperature probe 410 at the end of the extension tube 340 and the external ambient temperature according to an empirical formula. The more accurate the external ambient temperature is, the more accurate the predicted value of the gas temperature at the end of the extension tube 340 is. When obtaining the true value of the ambient temperature, if the temperature measuring element 270 is placed on the heating cable, and the heating power transmitted by the heating cable is constant, the true value of the ambient temperature = the measured value of the temperature measuring element 270 on the heating cable - the empirical value at this power. The empirical value can be understood as corresponding to the temperature rise value caused by the heating of the heating cable itself. In order to ensure that the temperature rise values ​​of different heating cables are consistent at the same power, the process of each heating cable needs to be kept consistent as much as possible. The smaller the difference between individual products, the more fixed the empirical value, and the more accurate the predicted value of the gas temperature at the end of the extension tube 340.

[0081] The above-mentioned empirical values ​​can be determined in advance when designing the product, and the relationship between the empirical values ​​and the cable heating power can be calibrated and written into the control unit of the humidifier host 220. When working, the control unit can identify the current heating power and then determine the corresponding empirical value.

[0082] Those skilled in the art will appreciate that in order to detect the gas temperature at the end of the extension tube 340, please refer to Figure 1 The humidifier further includes a temperature measuring cable assembly 400, and the terminal temperature probe 410 at the end of the extension tube 340 can be connected to the humidifier host 220 through the temperature measuring cable assembly 400. Similar to the humidifier breathing tube heating cable assembly 230, connectors can be provided at both ends of the length direction of the temperature measuring cable assembly 400, and the connectors at both ends are respectively connected to the humidifier host 220 and the terminal temperature probe 410. Both the temperature measuring cable assembly 400 and the terminal temperature probe 410 can adopt existing structures, which will not be described in detail here.

[0083] In order to minimize the differences between individual heating cable products, the humidifier breathing tube heating cable assembly 230 also includes a cable, a positioning seat 240 and a temperature measuring element 270. The above-mentioned host connector 231 and breathing tube connector 232 are connected to the ends of the cable, and the positioning seat 240 is connected to the cable, so that the relative position between the cable and the temperature measuring element 270 can be kept fixed.

[0084] Please refer to 1 and Figure 2 In one embodiment, both the inhalation tube 320 and the exhalation tube 350 are provided with tube body heaters. In order to power the tube body heaters on the inhalation tube 320 and the exhalation tube 350, the cables include a first cable 233, a second cable 234 and a third cable 235. The second cable 234 and the third cable 235 are branch cables, which are respectively connected to the first cable 233, and are uniformly connected to the humidifier host 220 by the first cable 233.

[0085] In a specific embodiment, please refer to Figure 5, the first cable 233 may include a common core wire 2331, a first branch core wire 2332, a second branch core wire 2333 and a temperature measuring lead wire 271, while the second cable 234 and the third cable 235 may include two core wires. The common core wire 2331 is connected to the corresponding core wire of the second cable 234 and the corresponding core wire of the third cable 235 through the first connection point 261, the first branch core wire 2332 is connected to the corresponding core wire of the second cable 234 through the second connection point 262, and the second branch core wire 2333 is connected to the corresponding core wire of the third cable 235 through the third connection point 263. Among them, the common core wire 2331 may correspond to the negative electrode, and the first branch core wire 2332 and the second branch core wire 2333 may correspond to the positive electrode. Correspondingly, the two core wires of the second cable 234 can be connected to the common core wire 2331 and the first branch core wire 2332 respectively, and the two core wires of the third cable 235 can be connected to the common core wire 2331 and the second branch core wire 2333 respectively. The provision of the common core wire 2331 can reduce the number of core wires, which is conducive to reducing the number of conductive contacts provided in the connector at the end of the cable, saving costs and controlling the outer diameter of the cable. The temperature measuring lead 271 is connected to the temperature measuring element 270, for example, connected to the pin of the temperature measuring element 270 through a corresponding connection point. The temperature measuring lead 271 is a component of the first cable 233, and its end away from the temperature measuring element 270 is connected to the conductive contact on the host connector 231, so that the temperature measuring element 270 can be connected to the humidifier host 220.

[0086] It should be noted that, in some other embodiments, if only individual breathing tubes need to be heated, for example, only the inhalation tube 320 needs to be heated, then the humidifier breathing tube heating cable assembly 230 can be a single cable, for example, formed by a complete cable, and no branching structure is required. In addition, in other embodiments, each core wire of the second cable 234 can be connected to a group of core wires in the first cable 233 in a one-to-one correspondence, and each core wire in the third cable 235 can also be connected to another group of core wires in the first cable 233 in a one-to-one correspondence, that is, the common core wire 2331 is not used.

[0087] The first connection point 261, the second connection point 262 and the third connection point 263 can be connected by welding, which has a simple structure and can ensure connection reliability. Of course, those skilled in the art can understand that the specific form of the above connection points is not limited. For example, the first connection point 261, the second connection point 262 and the third connection point 263 can also be crimped by a crimping terminal. The crimping terminal can adopt a structure in the prior art. For example, the crimping terminal can be made of a metal sheet, and clamps are set at both ends of the length direction of the crimping terminal. After the core wire is passed into the clamp, a wire crimping device is used to make the clamp tighten the core wire and maintain good conductive contact, so that the conduction and fixation between different core wires can be achieved.

[0088] The type of the temperature measuring element 270 can be selected as needed. In one embodiment, the temperature measuring element 270 is a temperature measuring resistor. The temperature measuring resistor is a temperature sensor based on resistance, and its resistance value changes with temperature. The corresponding circuit can map the temperature value through the resistance value. The utility model does not limit the type of the temperature measuring element 270. For example, in some other embodiments, the temperature measuring resistor can also be replaced by a thermocouple, a temperature measuring IC and other types of temperature measuring elements 270. In some embodiments, the temperature measuring element 270 has a length direction, and the length direction of the portion of the cable located on the positioning seat 240 is parallel to the length direction of the temperature measuring element 270, which is conducive to ensuring the temperature balance of different parts of the length direction of the temperature measuring element 270, and is conducive to reducing the width direction size of the positioning seat 240.

[0089] Please refer to Figure 3 and Figure 4 In one embodiment, the positioning seat 240 can be a plastic part, such as but not limited to ABS material or PP material. Those skilled in the art can understand that since the positioning seat 240 is used to position the cable and the temperature measuring element 270, it should have a corresponding hardness to avoid relative displacement between the positioned cable and the temperature measuring element 270 due to its own deformation. Of course, in addition to ABS material or PP material, the positioning seat 240 can also be made of other materials when the corresponding positioning requirements are met. For example, in some other embodiments, the positioning seat 240 can also be made of metal material. Although the thermal conductivity of metal materials is often higher, it can still meet the use requirements when the heat generated by the cable is relatively small, and better ensure the relative positioning between the cable and the temperature measuring element 270.

[0090] The shape of the positioning seat 240 is not limited. In a specific embodiment, the positioning seat 240 is a sheet structure. Along the thickness direction of the positioning seat 240, the positioning seat 240 has a first side and a second side. A first positioning structure 244 is provided on the first side of the positioning seat 240, and the first positioning structure 244 is used to fix the cable. A second positioning structure 245 is provided on the second side of the positioning seat 240, and the second positioning structure 245 is used to fix the temperature measuring element 270. By providing the first positioning structure 244 and the second positioning structure 245 on two opposite sides of the positioning seat 240, the portion of the cable located on the positioning seat 240 and the temperature measuring element 270 can maintain a constant positional relationship, so that the effect of the heating of the cable on the temperature measuring element 270 can be consistent with the pre-measured situation, which is conducive to maintaining the consistency of the temperature measurement results of each cable assembly. It should be noted that the positioning of the cable by the first positioning structure 244 does not necessarily make the cable and the positioning seat 240 completely fixed, and the cable can still have a certain amount of movement, which can play a certain role of restraint, that is, it can improve product consistency; similarly, the positioning of the temperature measuring element 270 by the second positioning structure 245 does not necessarily make the temperature measuring element 270 and the positioning seat 240 completely fixed, and the temperature measuring element 270 can still have a certain amount of movement, which can play a certain role of restraint, that is, it can improve product consistency. Of course, relying on the positioning structure to achieve complete positioning can better ensure product consistency.

[0091] In a specific embodiment, the positioning seat 240 includes a first seat body portion 241, a second seat body portion 242 and a third seat body portion 243 arranged in sequence along the length direction of the cable, a first gap 246 is provided between the first seat body portion 241 and the second seat body portion 242, and a second gap 247 is provided between the second seat body portion 242 and the third seat body portion 243. The above-mentioned gaps can allow corresponding cables to pass through so as to meet the wiring requirements. For example, the first gap 246 between the first seat body portion 241 and the second seat body portion 242 can allow the temperature measuring lead 271 of the temperature measuring element 270 to pass through, so as to facilitate the arrangement of the temperature measuring element 270 to the corresponding side of the positioning seat 240. The first seat body portion 241, the second seat body portion 242 and the third seat body portion 243 are connected on both sides in the width direction by a connecting portion. In some other embodiments, the first seat body portion 241, the second seat body portion 242 and the third seat body portion 243 of the positioning seat 240 can also be connected to each other. At this time, in order to facilitate the connection of the temperature measuring lead 271, a through hole can be provided on the positioning seat 240.

[0092] According to the connection structure of the first cable 233, the second cable 234 and the third cable 235, in one embodiment, please refer to Figure 6The first positioning structure 244 is a cable positioning groove arranged on the first side of the second seat body portion 242. The cable positioning groove can be formed by a recessed portion arranged on the first side of the positioning seat 240. The length direction of the portion of the cable located on the positioning seat 240 is parallel to the length direction of the cable positioning groove.

[0093] In a specific embodiment, the cable positioning groove includes a first wire groove 2441 and two second wire grooves 2442, the first wire groove 2441 is arranged between the two second wire grooves 2442, the first connection point 261 is located in the first wire groove 2441, and the second connection point 262 and the third connection point 263 are respectively located in the two second wire grooves 2442. Since the corresponding core wires in the second cable 234 and the corresponding core wires in the third cable 235 are connected to the common core wire 2331, the width of the first wire groove 2441 is relatively wide, and can accommodate the common core wire 2331 and the corresponding core wires in the second cable 234 and the third cable 235 at the same time. By setting different cable positioning grooves, the core wires in the first cable 233, the second cable 234 and the third cable 235 can be well positioned, and the relative positions between the core wires are relatively constant. Of course, according to the exposed length of the core wire of the cable, when the exposed length is short, the cable positioning groove can also directly form a positioning relationship with the outer skin of the cable, rather than forming a positioning relationship with the core wire of the cable.

[0094] The groove wall between the first wire groove 2441 and the second wire groove 2442 can not only position the corresponding core wires, but also form an isolation structure to isolate the temperature conduction between different core wires.

[0095] The positioning seat 240 may be provided with a lengthwise positioning structure for positioning the cable along the lengthwise direction. Figure 5 , Figure 8A first cable anti-slip groove 252 is provided on the first seat body portion 241 of the positioning seat 240, and two second cable anti-slip grooves 253 are provided on the third seat body portion 243. Clamps can be fixedly provided on the first cable 233, the second cable 234 and the third cable 235. The clamps form convex portions on the outer circumference of the cables. The convex portions on the first cable 233 can be embedded in the first cable anti-slip groove 252, and the convex portions on the second cable 234 and the third cable 235 can be embedded in the two second cable anti-slip grooves 253 respectively, so that each cable can be positioned along the length direction and prevented from being pulled off the positioning seat 240. In addition, the isolation structure between the first wire groove 2441 and the second wire groove 2442 can also play a role in positioning the cables along the length direction of the cables. Those skilled in the art can understand that in some embodiments, the above-mentioned length direction positioning structure can also be omitted. For example, the resistance at various points along the length of the same cable is basically the same, and the current in the same core wire is equal, so the heat generated at various points along the length of the same cable is basically the same. In this case, the relative position of the temperature measuring element 270 and the cable along the length of the cable has little effect on the detection result.

[0096] The second positioning structure 245 is an embedding groove provided on the second side of the second seat body portion 242, and the embedding groove can be used for embedding the temperature measuring element 270. In a specific embodiment, the shape of the embedding groove can match the shape of the temperature measuring element 270, so that it is convenient to accurately position the temperature measuring element 270 along the length direction and width direction of the positioning seat 240 by relying on the embedding groove. Of course, in some other embodiments, the second positioning groove can also be other structures, such as a through groove that runs through the length direction of the positioning seat 240, or a circular groove, a square groove, etc.

[0097] In one embodiment, a lead groove 251 is provided on the positioning seat 240, the embedding groove is connected to the lead groove 251, and the temperature measuring lead 271 connected to the temperature measuring element 270 is positioned in the lead groove 251, which is conducive to further ensuring the structural consistency of the temperature measuring element 270.

[0098] It should be noted that in some other embodiments, the first positioning structure 244 and the second positioning structure 245 can be replaced by other forms, such as positioning blocks, positioning plates, positioning columns, etc. protruding from the surface of the positioning seat 240, and positioning is achieved through structures such as positioning blocks, positioning plates, positioning columns, etc.

[0099] Since the temperature of the positioning seat 240 will change with a lag when the ambient temperature changes, in one embodiment, the second positioning structure 245 is arranged at the edge of the positioning seat 240, which is conducive to making the detection value of the temperature measuring element 270 change more timely according to the ambient temperature. For the positioning seat 240 shown in the figure, the second positioning structure 245 and the temperature measuring element 270 are arranged at the edge of the positioning seat 240 in the width direction. In some other embodiments, those skilled in the art can understand that the second positioning structure 245 and the temperature measuring element 270 can also be arranged at the edge of the positioning seat 240 in the length direction, or at the corner of the positioning seat 240.

[0100] For the common core wire 2331 of the first cable 233, the current passing through the common core wire 2331 is the sum of the currents in the corresponding core wires of the second cable 234 and the corresponding core wires of the third cable, so the heat generated by the common core wire 2331 is generally larger. To this end, in one embodiment, the temperature measuring element 270 and the first wire slot 2441 are staggered along the distribution direction of the two second wire slots 2442, please refer to Figure 3 and Figure 4 The temperature measuring element 270 and the corresponding second positioning structure 245 can be arranged on the back of one of the second wire slots 2442, which is helpful to reduce the influence of the heat generated by the common core wire 2331 on the temperature measuring element 270. In addition, the material of the positioning seat 240 itself can have a heat insulation effect, which is also helpful to reduce the influence of the heat generated by the common core wire 2331 on the temperature measuring element 270.

[0101] In one embodiment, the portion of the cable connected to the positioning seat 240 is provided with an injection molding body, and the injection molding body may include a hard injection molding body 281 and a soft injection molding body 282. The positioning seat 240, the temperature measuring element 270 and the portion of the cable positioned by the positioning seat 240 are wrapped by the hard injection molding body 281, and the hard injection molding body 281 is wrapped by the soft injection molding body 282. The provision of the hard injection molding body 281 can protect the connection points between the first cable 233, the second cable 234 and the third cable 235, and prevent the connection points from failing when the cables are subjected to a large pulling force, and the hard injection molding body 281 can better ensure the relative position between the temperature measuring element 270 and the cable. The soft injection molding body 282 can protect the cable, prevent the connection between the cable and the positioning seat 240 from being excessively bent and damaged, and is also beneficial to improving the appearance of the cable assembly. Positioning columns may be provided on the outer surface of the positioning seat 240 to facilitate positioning between the positioning seat 240 and the hard injection molded body 281 , and positioning bosses may also be provided on the outer surface of the hard injection molded body 281 to facilitate positioning between the hard injection molded body 281 and the soft injection molded body 282 .

[0102] In a specific embodiment, the hard injection molding body 281 is a hard plastic, for example, it can be injection molded using materials such as HDPE, ABS, PP, etc., and the soft injection molding body 282 is a soft plastic, for example, it can be made of materials such as rubber, silicone, etc. It should be noted that those skilled in the art should be aware that the material selection of the hard injection molding body 281 and the soft injection molding body 282 should take into account the injection molding temperature. For example, the injection molding temperature of the hard injection molding body 281 should be lower than the melting temperature of the positioning seat 240, and the injection molding temperature of the soft injection molding body 282 should be lower than the melting temperature of the hard injection molding body 281, so as to avoid deformation of the internal structure of the external structure when the external structure is injected, and also to avoid affecting the relative position of the temperature measuring element 270 and the cable due to structural deformation. It can be understood that the specific parameters of the injection molding process can be determined by those skilled in the art according to actual conditions, and will not be introduced in detail in the present utility model.

[0103] During injection molding, the molten injection molding material may cause disturbances to the cable and the temperature sensing element when it flows into the mold, which may cause the relative position of the cable and the temperature sensing element to change. In addition, when the cable assembly with the cable and the temperature sensing element positioned is transported, the relative position of the cable and the temperature sensing element may also change. Therefore, in one embodiment, the humidifier breathing tube heating cable assembly 230 includes an adhesive (not shown in the figure), an adhesive is provided between the positioning seat 240 and the temperature measuring element 270, and / or an adhesive is provided between the positioning seat 240 and the cable. The adhesive can be formed by solidification of a liquid colloid, or it can be a solid colloid. The adhesive can play a pre-positioning role and can better ensure the relative position between the cable and the temperature sensing element.

[0104] It should be noted that, in some other embodiments, the hard injection molding body 281 is not a necessary structure. For example, the first positioning structure 244 and the second positioning structure 245 can be structures that rely on interference fit to achieve positioning. In this way, the core wire and the temperature measuring element 270 can be more firmly fixed on the positioning seat 240 by means of interference fit structure, snap-on structure, etc. Even if the positioning seat 240 is subjected to external force, it is difficult for the core wire and the temperature measuring element 270 to undergo relative displacement. At this time, the soft injection molding body 282 can be directly injection molded.

[0105] When the temperature measuring element 270 is set on the cable assembly, although the cable assembly generally does not generate serious heat, considering the serious heat generation of the humidifier host 220, if the temperature measuring element 270 is set close to the host connector 231, the temperature measuring element 270 may still be affected by the humidifier host 220, so in one embodiment, the cable length between the positioning seat 240 and the host connector 231 is not less than 10 cm. Similarly, the tube body heating element on the breathing tube will also generate a certain amount of heat, so in one embodiment, the cable length between the positioning seat 240 and the breathing tube connector 232 is not less than 10 cm.

[0106] Please refer to Figures 5 to 9 When manufacturing the above-mentioned humidifier breathing tube heating cable assembly 230, the following steps can be followed.

[0107] Step 1: Make the lengths of the first cable 233, the second cable 234 and the third cable 235 meet the design requirements, peel off the outer sheath of each cable away from the connector by a set length to expose the core wire, and peel off the insulation sheath of the core wire by a set length, then weld the core wires of the first cable 233, the second cable 234 and the third cable 235.

[0108] Step 2: The core wire is positioned at the first side of the positioning seat 240 by the first positioning structure 244, and the temperature measuring element 270 is installed at the second side of the positioning seat 240 and positioned by the second positioning structure 245. The positioning order of the core wire and the temperature measuring element 270 is not limited.

[0109] Step three, place the parts of the cable assembly corresponding to the positioning seat 240 and the temperature measuring element 270 into the mold, and injection mold the hard injection molding body 281 so that the positioning seat 240, the temperature measuring element 270 and the part of the cable positioned by the positioning seat 240 are wrapped by the hard injection molding body 281.

[0110] Step 4: Inject the soft injection molded body 282 so that the joints between the first cable 233 , the second cable 234 and the third cable 235 and the hard injection molded body 281 and the hard injection molded body 281 are wrapped by the soft injection molded body 282 to prevent the cables from being damaged due to excessive bending.

[0111] By setting the positioning seat 240, the first positioning structure 244 and the second positioning structure 245 on the positioning seat 240 can keep the temperature measuring element 270 and the cable relatively fixed on the positioning seat 240. The structural consistency of the temperature measuring element 270 is improved through structural design. Even if different humidifier breathing tube heating cable assemblies 230 are connected, the formula of actual value of ambient temperature = measured value of the temperature measuring element on the cable - empirical value under the power can still be used to more accurately calculate the actual value of ambient temperature, thereby improving the prediction accuracy of the patient's inhaled gas temperature.

[0112] Embodiment of the humidifier breathing tube heating cable assembly of the utility model:

[0113] The embodiment of the humidifier breathing tube heating cable assembly may be the same as the humidifier breathing tube heating cable assembly 230 in any embodiment of the humidifier described above, and will not be described in detail herein.

[0114] Embodiment of the humidifier cable assembly in the utility model:

[0115] The embodiment of the humidifier cable assembly can be the same as the humidifier breathing tube heating cable assembly 230 in any embodiment of the humidifier described above, and will not be described in detail here. In addition, it should be noted that in some other embodiments of the humidifier cable assembly, the first positioning structure 244 and the second positioning structure 245 can also be arranged on the same side of the positioning seat 240, for example, a temperature measuring element 270 positioning groove can be additionally arranged on the side of any second wire groove 2442 away from the first wire groove 2441. Furthermore, a heat insulation structure can be provided between the cable and the temperature measuring element 270, for example, a heat insulation structure is formed by the side wall of the cable positioning groove, or a heat insulation block, a heat insulation sheet, etc. are fixed between the cable and the temperature measuring element 270 as a heat insulation structure.

[0116] It should also be noted that in some other embodiments of the humidifier cable assembly, the humidifier cable assembly provided with the above-mentioned positioning seat 240 and the temperature measuring element 270 may not be a cable assembly for heating the humidifier breathing tube, for example, it may be a temperature measuring cable assembly 400 for connecting the terminal temperature probe 410.

[0117] Correspondingly, in some embodiments of the humidifier including the above-mentioned humidifier cable assembly, the first positioning structure 244 and the second positioning structure 245 on the positioning seat 240 in the humidifier cable assembly can also be arranged on the same side of the positioning seat 240. For example, a temperature measuring element positioning groove can be further arranged on the side of any second wire groove 2442 away from the first wire groove 2441.

[0118] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A humidifier breathing tube heating cable assembly, characterized in that: include: Cables; A positioning seat, the positioning seat is connected to the cable, the positioning seat is provided with a first positioning structure, and the cable is positioned on the positioning seat by the first positioning structure; and temperature measuring elements; The positioning seat is provided with a second positioning structure, and the temperature measuring element is positioned on the positioning seat by the second positioning structure. The first positioning structure and the second positioning structure are respectively located on two opposite side surfaces of the positioning seat.

2. The humidifier breathing tube heating cable assembly according to claim 1, characterized in that: The second positioning structure is arranged on the edge of the positioning seat.

3. The humidifier breathing tube heating cable assembly according to claim 1, characterized in that: The temperature measuring element has a length direction, and the length direction of the portion of the cable located on the positioning seat is parallel to the length direction of the temperature measuring element.

4. The humidifier breathing tube heating cable assembly according to claim 1, 2 or 3, characterized in that: It comprises adhesive glue, and the adhesive glue is arranged between the positioning seat and the temperature measuring element, and / or the adhesive glue is arranged between the positioning seat and the cable.

5. The humidifier breathing tube heating cable assembly according to claim 1, 2 or 3, characterized in that: It comprises a hard injection molded body, wherein the positioning seat, the temperature measuring element and the part of the cable positioned by the positioning seat are wrapped by the hard injection molded body.

6. The humidifier breathing tube heating cable assembly according to claim 1, 2 or 3, characterized in that: The first positioning structure comprises a cable positioning groove, and the length direction of the portion of the cable located on the positioning seat is parallel to the length direction of the cable positioning groove.

7. The humidifier breathing tube heating cable assembly according to claim 6, characterized in that: The cable comprises a first cable, a second cable and a third cable, the second cable and the third cable are respectively connected to the first cable; the first cable comprises a common core wire, a first branch core wire and a second branch core wire, the common core wire is respectively connected to the corresponding core wire of the second cable and the corresponding core wire of the third cable through a first connection point, the first branch core wire is connected to the corresponding core wire of the second cable through a second connection point, and the second branch core wire is connected to the corresponding core wire of the third cable through a third connection point; The cable positioning groove includes a first wire groove and two second wire grooves, the first wire groove is arranged between the two second wire grooves, the first connection point is located in the first wire groove, the second connection point and the third connection point are respectively located in the two second wire grooves, and the temperature measuring element is staggered with the first wire groove along the distribution direction of the two second wire grooves.

8. The humidifier breathing tube heating cable assembly according to claim 1, 2 or 3, characterized in that: The second positioning structure is an embedding groove, and the shape of the embedding groove matches the shape of the temperature measuring element.

9. The humidifier breathing tube heating cable assembly according to claim 8, characterized in that: The temperature measuring element is connected with a temperature measuring lead wire, the positioning seat is provided with a lead wire groove, the embedding groove is communicated with the lead wire groove, and the temperature measuring lead wire is positioned in the lead wire groove.

10. The humidifier breathing tube heating cable assembly according to claim 1, 2 or 3, characterized in that: The cable is interference fit with the first positioning structure, and / or the temperature measuring element is interference fit with the second positioning structure.

11. The humidifier breathing tube heating cable assembly according to claim 1, 2 or 3, characterized in that: It includes a host connector and a breathing tube connector, the host connector is used to connect to the humidifier host, the breathing tube connector is used to connect to the heating element on the breathing tube, the cable length between the positioning seat and the host connector is not less than 10 cm, and the cable length between the positioning seat and the breathing tube connector is not less than 10 cm.

12. The humidifier breathing tube heating cable assembly according to claim 1, 2 or 3, characterized in that: The material of the positioning seat is ABS or PP.

13. A humidifier cable assembly, characterized in that: include: Cables; A positioning seat, the positioning seat is connected to the cable, the positioning seat is provided with a first positioning structure, and the cable is positioned on the positioning seat by the first positioning structure; and temperature measuring elements; The positioning seat is provided with a second positioning structure, and the temperature measuring element is positioned on the positioning seat by the second positioning structure.

14. The humidifier cable assembly according to claim 13, characterized in that: A heat insulation structure is provided between the cable and the temperature measuring element.

15. The humidifier cable assembly according to claim 13, characterized in that: The second positioning structure is arranged on the edge of the positioning seat.

16. The humidifier cable assembly according to claim 13, characterized in that: The temperature measuring element has a length direction, and the length direction of the portion of the cable located on the positioning seat is parallel to the length direction of the temperature measuring element.

17. The humidifier cable assembly according to any one of claims 13 to 16, characterized in that: It includes a host connector and a breathing tube connector, the host connector is used to connect to the humidifier host, the breathing tube connector is used to connect to the heating element on the breathing tube, the cable length between the positioning seat and the host connector is not less than 10 cm, and the cable length between the positioning seat and the breathing tube connector is not less than 10 cm.

18. A humidifier, characterized in that: include: A humidification tank, wherein the humidification tank is provided with an exhaust port, and the exhaust port is connected to a breathing tube; A humidifier host, the humidifier tank is installed on the humidifier host, the humidifier host comprises a heating element, and the heating element is used to heat the liquid in the humidifier tank; and a humidifier breathing tube heating cable assembly, the humidifier breathing tube heating cable assembly is used to connect between the heating element on the breathing tube and the humidifier host; The humidifier breathing tube heating cable assembly is the humidifier breathing tube heating cable assembly according to any one of claims 1 to 12.

19. A humidifier, characterized in that: include: A humidification tank, wherein the humidification tank is provided with an exhaust port, and the exhaust port is connected to a breathing tube; A humidifier host, the humidifier tank is installed on the humidifier host, the humidifier host comprises a heating element, and the heating element is used to heat the liquid in the humidifier tank; And a humidifier cable assembly, wherein the humidifier cable assembly is used to be connected to the humidifier host; the humidifier cable assembly is the humidifier cable assembly according to any one of claims 13 to 17.

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