CN213688699U

CN213688699U - Temperature probe of household oven

Info

Publication number: CN213688699U
Application number: CN202023035980.9U
Authority: CN
Inventors: 刘遂; 范星星; 罗韩程; 刘岩
Original assignee: Dongguan Lanshunxin Industrial Co ltd
Current assignee: Dongguan Lanshunxin Industrial Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-07-13
Anticipated expiration: 2030-12-15

Abstract

The application relates to the field of temperature probes, in particular to a household oven temperature probe, which comprises an outer shell, a temperature sensor and a temperature control unit, wherein one end of the outer shell is opened, the other end of the outer shell is closed, and the inner part of the outer shell is hollow to form a placing cavity; the insulation piece is positioned in the placing cavity, at least two threading grooves are formed in the insulation piece, a containing groove is formed in the end, closed, of the insulation piece, located on the outer shell, of the insulation piece, and the insulation piece is made of high-temperature-resistant insulation materials; the temperature-sensitive element is positioned in the accommodating groove and used for detecting the temperature; the first wires are at least arranged into two wires which are located in the threading grooves in a one-to-one correspondence mode, one ends of the first wires are connected with the temperature-sensitive elements, the second wires are at least arranged into two wires which are connected with the first wires in a one-to-one correspondence mode, and the other ends of the second wires penetrate out of one end of the opening of the outer shell. This application has the effect that makes oven temperature probe's assembly simpler and easy.

Description

Temperature probe of household oven

Technical Field

The application relates to the field of temperature probes, in particular to a household oven temperature probe.

Background

An oven is a sealed electric appliance for baking food or drying products, and is classified into a home electric appliance and an industrial oven. The domestic oven can be used for processing some pasta. An industrial oven is a device used for drying products in industry, and is an electric oven and a gas oven, which are also called as an oven, a drying box and the like. When the oven is used, the temperature inside the oven needs to be detected, and the detected element is an oven temperature probe.

The oven temperature probe has the function of sensing the temperature in the oven through the thermistor and then transmitting an electric signal of the resistance change of the thermistor to the control unit, so that the real-time monitoring of the temperature in the oven is realized. The cable is required to work normally at the ambient temperature below 550 ℃ and 2KV high-voltage test is required to pass between the lead and the outer shell.

Because oven temperature probe's operational environment is comparatively abominable, in order to guarantee its normal work, need be provided with insulating layer, insulating layer etc. in oven temperature probe inside, simultaneously because oven temperature probe's volume is less, consequently after setting up more complicated thermal-insulated insulation system, oven temperature probe's assembly is very inconvenient.

Disclosure of Invention

In order to make the assembly of oven temperature probe simpler and easier, the application provides a domestic oven temperature probe.

The application provides a domestic oven temperature probe adopts following technical scheme:

a temperature probe of a household oven comprises a temperature probe,

the shell is provided with an opening at one end and a closed end at the other end, and the interior of the shell is hollow to form a placing cavity;

the insulation piece is positioned in the placing cavity, at least two threading grooves are formed in the insulation piece, an accommodating groove is formed in the end, closed to the outer shell, of the insulation piece, and the insulation piece is made of high-temperature-resistant insulation materials;

the temperature-sensitive element is positioned in the accommodating groove and used for detecting the temperature;

at least two first wires are arranged and are positioned in the threading groove in one-to-one correspondence, one end of each first wire is connected with the temperature-sensitive element,

and the second conducting wires are arranged into at least two conducting wires which are connected with the first conducting wires in a one-to-one correspondence mode, and the other ends of the second conducting wires penetrate out from one end of the opening of the outer shell.

By adopting the technical scheme, in the installation process of the temperature probe, the first lead is fixed through the threading groove of the insulating part without being fixed by using a traditional powder filling agent, one process is troublesome when the fixing is carried out by using the powder filling agent, and the other process pollutes the environment; adopt the double flute structure to improve the packaging efficiency in the actual production process simultaneously, convenient operation, whole journey is kept apart through the insulating part between two first wires, between first wire and shell body, very big reduction the emergence of short circuit condition.

Preferably, the insulating member comprises an outer insulating tube and an inner insulating tube;

the utility model discloses a wire connection device, including outer insulating tube, outer insulating tube outside wall with the laminating of the inner wall of shell body, outer insulating tube inside wall cavity forms and is used for placing the insulating chamber of interior insulating tube, seted up on the interior insulating tube the threading groove, the length of interior insulating tube along the axis direction is less than outer insulating tube, the complete cladding of interior insulating tube in the outer insulating tube, the insulating chamber is located the both ends of interior insulating tube form respectively storage tank and wiring groove, the wiring groove is the hookup location of first wire and second wire.

By adopting the technical scheme, a structural mode of the insulating part is provided specifically but not restrictively, under the condition of not only explaining, in the installation process, the temperature-sensitive element is connected with the first lead, then the first lead passes through the threading groove of the inner insulating tube, then the inner insulating tube provided with the temperature-sensitive element passes through the outer insulating tube, and then the outer insulating tube is arranged in the outer shell, so that the assembly efficiency in the actual production process is improved, and the operation is convenient; meanwhile, the whole inner insulating tube is coated by the outer insulating tube, so that the insulating property and the high-temperature resistance are more stable; moreover, the wiring groove is arranged in the outer insulating tube, so that the insulation of the wiring position is ensured.

Preferably, the threading groove sets up to two and along the even interval distribution of circumference of interior insulating tube, threading groove one side is run through to the lateral wall of interior insulating tube.

Through adopting above-mentioned technical scheme for in the first wire can directly place into interior insulating tube when the installation, need not to carry out the threading operation, thereby improved the packaging efficiency in the actual production process by a wide margin.

Preferably, the two second wires are externally sleeved with a snap ring.

Through adopting above-mentioned technical scheme, two second wires pass through the snap ring to be fixed to be difficult for rocking, thereby guarantee the stability of probe.

Preferably, the insulating part is an insulating sleeve, the outer side wall of the insulating sleeve is attached to the inner wall of the outer shell, two threading grooves are formed in the insulating sleeve along the axis direction, the insulating sleeve is located in two end portions, the grooves are formed in the inner portion of the end portions, the accommodating grooves and the wiring grooves are formed in the inner portion of the end portions, and the wiring grooves are the connecting positions of the first wires and the second wires.

By adopting the technical scheme, a structural mode of the insulating part is provided specifically but not restrictively, and under the condition of not only explaining, in the installation process, the temperature-sensitive element is connected with the first lead, then the first guide passes through the threading groove of the insulating sleeve, and then the insulating sleeve is installed in the outer shell, so that the assembly efficiency in the actual production process is improved, and the operation is convenient; simultaneously, because all be located insulating sleeve with storage tank and wiring groove to make holistic insulating properties and high temperature resistance performance just more stable.

Preferably, the threading groove faces towards the end part of the wiring groove is horn-shaped, and the large opening end faces towards the wiring groove.

Through adopting above-mentioned technical scheme for first wire can be connected at the tip of threading groove, then can sheathe in insulating cover when the second wire in the threading inslot, thereby can not establish insulating cover when the second wire is located wiring groove department and overlap between two second wires, thereby has improved the packaging efficiency in the actual production process, convenient operation.

Preferably, a heat shrinkable tube is sleeved outside one of the second leads.

By adopting the technical scheme, the second lead is subjected to insulation treatment by arranging the heat shrink tube.

Preferably, the open-ended one end of shell body is provided with clamp plate and gland, the clamp plate is located the gland with between the shell body, the gland with shell body interference fit.

Through adopting above-mentioned technical scheme, gland and shell body pass through interference fit and connect for the wire can bear great pulling force and not loosen and take off. The packaging structure is firm and exquisite in appearance and tidy.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the installation process of the temperature probe, filling powder is not needed, and the temperature probe is simple to install, environment-friendly and safe;

2. the double-groove structure is adopted, the assembly efficiency in the actual production process is improved, the operation is convenient, the whole process between the two first leads and between the first leads and the outer shell is isolated through the insulating parts, and the occurrence of short circuit is greatly reduced;

3. the utility model provides a wiring groove sets up in outer insulating tube to guarantee the insulation of wiring department.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a temperature probe of a home oven according to the present application.

Fig. 2 is a cross-sectional view of a first embodiment of a home oven temperature probe of the present application.

Fig. 3 is a sectional view of a second embodiment of a home oven temperature probe according to the present application.

Description of reference numerals:

1. an outer housing; 11. a placement chamber;

2. an insulating member; 21. an outer insulating tube; 211. an insulating cavity; 212. a containing groove; 213. a wiring slot; 22. an inner insulating tube; 221. a threading slot; 23. an insulating sleeve;

3. a temperature sensitive element; 31. a pin; 4. a first conductive line; 5. a second conductive line; 6. a snap ring; 7. heat shrink tubing; 8. pressing a plate; 9. a gland; 10. mounting a bracket; 101. and (7) installing holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The first embodiment is as follows:

the embodiment of the application discloses a temperature probe of a household oven. Referring to fig. 1 and 2, a temperature probe for a household oven includes an outer case 1, an insulator 2, a temperature sensitive element 3, and a first wire 4.

Wherein, shell body 1 is quasi-cylindrical, and the one end opening of shell body 1, the other end is sealed, and the inside cavity of shell body 1 forms places chamber 11, and shell body 1 is made by stainless steel or other high temperature resistant material. The insulating part 2 is positioned in the placing cavity 11 to insulate the first guide from the outer shell 1, at least two threading grooves 221 are formed in the insulating part 2, a containing groove 212 for placing the temperature-sensitive element 3 is formed in the closed end, located at the outer shell 1, of the insulating part 2, and the insulating part 2 is made of a high-temperature-resistant insulating material; the temperature-sensitive element 3 is placed in the containing groove 212 to detect the temperature inside the oven, the temperature-sensitive element 3 can be selected as a PT platinum resistor, pins 31 connected with the first lead 4 are arranged on the temperature-sensitive element 3, the number of the pins 31 is consistent with the number of the first lead 4 and the threading groove 221, and the pins 31 and the first lead 4 of the temperature-sensitive element 3 are in one-to-one correspondence, namely the pins 31 and the first lead 4 are in resistance welding connection in one-to-one correspondence, the first lead 4 is in the threading groove 221 in one-to-one correspondence, the other end of the first lead 4 is riveted with the second lead 5 through a copper strip, and the other end of the second lead 5 is. In this embodiment, the number of the second wires 5 is the same as that of the first wires 4, and the second wires are connected to the first wires 4 in a one-to-one correspondence manner, and the other ends of the second wires penetrate through the opening end of the outer shell 1. Here, the first conductive wire 4 may be a pure nickel wire, and the second conductive wire 5 may be a common copper wire.

With regard to the structure of the insulating member 2, the following is specifically described.

Referring to fig. 2, the insulating member 2 includes an outer insulating tube 21 and an inner insulating tube 22, the outer insulating tube 21 and the inner insulating tube 22 are both substantially cylindrical, the material of the outer insulating tube 21 and the inner insulating tube 22 may be selected from insulating materials such as ceramic or magnesium oxide, the outer sidewall of the outer insulating tube 21 is attached to the inner wall of the outer shell 1, the inner wall of the outer insulating tube 21 is hollow to form an insulating cavity 211 for placing the inner insulating tube 22, the inner insulating tube 22 is provided with the threading groove 221, the threading grooves 221 are arranged in two and are distributed along the circumferential direction of the inner insulating tube 22 at equal intervals, and one side of the threading groove 221 penetrates through the outer sidewall of the inner insulating tube 22. Therefore, the first lead 4 can be directly placed into the inner insulating tube 22 during installation, threading operation is not needed, and only the lead is embedded into the threading groove 221, so that the assembly efficiency in the actual production process is greatly improved.

Further, the length of the inner insulating tube 22 along the axial direction is smaller than that of the outer insulating tube 21, the inner insulating tube 22 is completely covered in the outer insulating tube 21, that is, the entire inner insulating tube 22 is completely located in the insulating cavity 211, the insulating cavity 211 is located at two ends of the inner insulating tube 22 to form the receiving cavity 212 and the wiring groove 213, and the wiring groove 213 is a connection position of the first conducting wire 4 and the second conducting wire 5.

In the installation process, the temperature-sensitive element 3 is connected with the first lead 4, then the first lead 4 passes through the threading groove 221 of the inner insulating tube 22, then the inner insulating tube 22 provided with the temperature-sensitive element 3 passes through the outer insulating tube 21, and then the outer insulating tube 21 is arranged in the outer shell 1, so that the assembly efficiency in the actual production process is improved, and the operation is convenient; meanwhile, the whole inner insulating tube 22 is coated by the outer insulating tube 21, so that the insulating property and the high-temperature resistance are more stable; furthermore, since the wiring groove 213 is provided in the outer insulating tube 21, insulation at the wiring position is ensured.

In order to guarantee the stability of two second wires 5, the outside cover of two second wires 5 is equipped with snap ring 6, and two second wires 5 are fixed through snap ring 6 to be difficult for rocking, thereby guarantee the stability of probe.

In this embodiment, a heat shrinkable tube 7 is sleeved outside one of the second wires 5, and the heat shrinkable tube 7 is disposed to insulate the second wire 5.

After the installation of temperature sensitive resistor is accomplished, only need sealed processing to outer casing 1, consequently, be provided with clamp plate 8 and gland 9 that are used for sealing outer casing 1 in 1 open-ended one end of outer casing, figure 2 the state is the state after the installation, and at this moment, clamp plate 8 is located between gland 9 and the outer casing 1, and clamp plate 8's both ends and gland 9 and the laminating of outer casing 1, gland 9 and outer casing 1 interference fit. Because gland 9 and shell body 1 are connected through interference fit for the wire can bear great pulling force and not loosen, this packaging structure is firm and the outward appearance is exquisite clean and tidy.

After the sealing treatment is completed, the mounting bracket 10 is sleeved on the outer wall of the outer shell 1, and the temperature probe of the present application is mounted at the working position through the mounting bracket 10, that is, the mounting bracket 10 is used for mounting and matching with the oven. The installing support 10 can be selected to be stainless steel, and it has mounting hole 101 to open on the installing support 10, and shell body 1 can pass in the mounting hole 101, and shell body 1 is connected with mounting hole 101 interference fit. In order to ensure stable connection, welding may be performed at the joint of the outer case 1 and the mounting hole 101.

The implementation principle of the temperature probe of the household oven in the embodiment of the application is as follows: in the installation process of the temperature probe, the first lead 4 is fixed through the threading groove 221 of the insulating part 2 without being fixed by using a traditional powder filling agent, one process is troublesome when the powder filling agent is used for fixing, and the other process pollutes the environment; adopt the double flute structure to improve the packaging efficiency in the actual production process simultaneously, convenient operation keeps apart through insulator 2 between two first wires 4, whole journey between first wire 4 and shell body 1, very big reduction the emergence of short circuit condition.

The embodiment of the application also discloses an assembly process of the temperature probe of the household oven. An assembly process of a household oven temperature probe is used for installing the oven temperature probe and comprises the following steps,

the pin 31 of the temperature-sensitive element 3 is respectively connected with the two first leads 4 through resistance welding; the welded first lead 4 is respectively clamped in the two threading grooves 221 of the inner insulating tube 22, and then the inner insulating tube 22, the temperature-sensitive element 3 and the first lead 4 are integrally embedded into the outer insulating tube 21;

the first lead 4 and the second lead 5 are fixed by welding, and then the inner insulating tube 22 and the outer insulating tube 21 are inserted into the outer case 1.

The implementation principle of the assembly process of the temperature probe of the household oven in the embodiment of the application is as follows: the assembly process is firm in fixation, does not need to be fixed by powder filling agent, and is more environment-friendly and safer; the double-groove structure greatly improves the assembly efficiency in the actual production process, and is convenient to operate; the wires are isolated from each other and from the outer shell 1 through insulating pipes in the whole process, so that the short circuit condition is greatly avoided; the lengths of the insulating tube, the insulating tube and the pure nickel wire can be adjusted according to actual needs, so that the controllable lengths of high-temperature resistant and high-pressure resistant areas of the product are realized.

Example two:

the difference between the second embodiment and the first embodiment is that:

the insulating part 2 is an insulating sleeve 23, the outer side wall of the insulating sleeve 23 is attached to the inner wall of the outer shell 1, two threading grooves 221 are formed in the insulating sleeve 23 along the axis direction, the insulating sleeve 23 is located inside the two end portions to form a containing groove 212 and a wiring groove 213, and the wiring groove 213 is a connection position of the first lead 4 and the second lead 5.

In the installation process of the temperature probe of the household oven, the temperature-sensitive element 3 is connected with the first lead 4, then the first guide passes through the threading groove 221 of the insulating sleeve 23, and then the insulating sleeve 23 is installed in the outer shell 1, so that the assembly efficiency in the actual production process is improved, and the operation is convenient; meanwhile, the accommodating groove 212 and the wiring groove 213 are both located in the insulating sleeve 23, so that the overall insulating performance and high temperature resistance are more stable.

Furthermore, the end of the threading groove 221 facing the wiring groove 213 is trumpet-shaped, and the end of the large opening faces the wiring groove 213, so that the first lead 4 can be connected at the end of the threading groove 221, and then an insulating sleeve can be sleeved on the second lead 5 in the threading groove 221, so that the insulating sleeve does not need to be sleeved between the two second leads 5 when the second lead 5 is positioned at the wiring groove 213, thereby improving the assembly efficiency in the actual production process and facilitating the operation.

Compared with the structure of the first embodiment, the structure of the first embodiment is simpler, the installation of the insulating sleeve is reduced, the threading procedure of the temperature probe of the household oven is reduced, and the temperature probe of the first embodiment can be selected preferentially according to the actual production requirement in the actual production process.

the pin 31 of the temperature-sensitive element 3 is respectively connected with the two first leads 4 through resistance welding; the welded first lead 4 respectively passes through the two threading grooves 221 of the insulating sleeve 23, then the first lead 4 and the second lead 5 are welded and fixed, and the insulating sleeve 23, the temperature-sensitive element 3 and the first lead 4 are embedded into the outer shell 1 as a whole.

The implementation principle of the assembly process of the temperature probe of the household oven in the embodiment of the application is as follows: the assembly process is firm in fixation, and the powder filling agent is not needed for fixation, so that the assembly process is more environment-friendly and safer; the double-groove structure greatly improves the assembly efficiency in the actual production process, and is convenient to operate; the wires are isolated from each other and from the outer shell 1 through insulating pipes in the whole process, so that the short circuit condition is greatly avoided; the lengths of the insulating tube, the insulating tube and the pure nickel wire can be adjusted according to actual needs, so that the controllable lengths of high-temperature resistant and high-pressure resistant areas of the product are realized.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A domestic oven temperature probe which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the shell body (1) is provided with an opening at one end and a closed end at the other end, and the interior of the shell body is hollow to form a placing cavity (11);

the insulation piece (2) is positioned in the placing cavity (11), at least two threading grooves (221) are formed in the insulation piece (2), an accommodating groove (212) is formed in one end, closed, of the insulation piece (2) and positioned at the outer shell (1), and the insulation piece (2) is made of high-temperature-resistant insulation materials;

the temperature-sensitive element (3) is positioned in the accommodating groove (212) and is used for detecting the temperature;

at least two first wires (4) are arranged and are positioned in the threading groove (221) in one-to-one correspondence, one end of each first wire is connected with the temperature-sensitive element (3),

and the second conducting wires (5) are arranged into at least two and are connected with the first conducting wires (4) in a one-to-one correspondence mode, and the other ends of the second conducting wires penetrate out from one end of the opening of the outer shell (1).

2. A home oven temperature probe as claimed in claim 1, wherein: the insulating part (2) comprises an outer insulating tube (21) and an inner insulating tube (22);

outer insulating tube (21) lateral wall with the inner wall laminating of shell body (1), outer insulating tube (21) inner wall cavity forms and is used for placing insulating chamber (211) of interior insulating tube (22), seted up on interior insulating tube (22) threading groove (221), interior insulating tube (22) are less than along the length of axis direction outer insulating tube (21), the complete cladding of interior insulating tube (22) in outer insulating tube (21), insulating chamber (211) are located the both ends of interior insulating tube (22) form respectively storage tank (212) and wiring groove (213), wiring groove (213) are the hookup location of first wire (4) and second wire (5).

3. A home oven temperature probe as claimed in claim 2, wherein: the utility model discloses a cable insulation pipe, including threading groove (221), the even interval distribution of circumference that just follows interior insulating tube (22) is set up to two and threading groove (221), threading groove (221) one side is run through to the lateral wall of interior insulating tube (22).

4. A home oven temperature probe as claimed in claim 3, wherein: and a snap ring (6) is sleeved outside the second lead (5).

5. A home oven temperature probe as claimed in claim 1, wherein: insulating part (2) are an insulating sleeve (23), insulating sleeve (23) lateral wall with the inner wall laminating of shell body (1), two threading grooves (221) have been seted up along the axis direction in insulating sleeve (23), insulating sleeve (23) are located the inside fluting of two tip and form storage tank (212) and wiring groove (213), wiring groove (213) are the hookup location of first wire (4) and second wire (5).

6. A home oven temperature probe as claimed in claim 5, wherein: threading groove (221) orientation the tip of wiring groove (213) is the horn shape and big mouth end orientation wiring groove (213).

7. A home oven temperature probe according to any of claims 1 to 6, wherein: and a heat-shrinkable tube (7) is sleeved outside one of the second leads (5).

8. A home oven temperature probe according to any of claims 1 to 6, wherein: the utility model discloses a pressure-bearing shell, including shell body (1), clamp plate (8), gland (9) and shell body (1), shell body (1) open-ended one end is provided with clamp plate (8) and gland (9), clamp plate (8) are located gland (9) with between the shell body (1), gland (9) with shell body (1) interference fit.