External separated heating type wax bag

Abstract

The utility model relates to an external separation heating type wax bag, and belongs to the technical field of thermostats, the external separation heating type wax bag comprises a wax bag shell, a heater and an ejector rod, one side of the wax bag shell is provided with a heating separation groove for installing the heater, the wax bag shell is internally provided with a wax bag cavity for storing wax, the ejector rod is partially inserted into the wax bag cavity, and the heater is arranged in the heating separation groove. A part of the wax bag chamber protrudes out of the wax bag shell and is exposed outside, and the wax bag chamber is not communicated with the heating separation groove. The thermostat wax bag has the effect that wax in the thermostat wax bag is not prone to leakage after being melted.

Description

Technical Field

[0001] The present application relates to the technical field of thermostats, and in particular to an externally mounted separate heating wax bag. Background Art

[0002] The thermostat is a component that automatically adjusts the amount of water entering the radiator according to the temperature of the cooling water, changes the circulation range of the water, adjusts the heat dissipation capacity of the cooling system, and ensures that the engine works within the appropriate temperature range. The thermostat commonly used at present is a wax thermostat, and the wax bag is the core component of the wax thermostat. When the cooling temperature is lower than the specified value, the refined paraffin in the wax bag is solid, and the thermostat valve closes the channel between the engine and the radiator under the action of the spring. The coolant returns to the engine through the water pump and performs a small circulation in the engine. When the coolant temperature reaches the specified value, the paraffin begins to melt and gradually becomes liquid, which in turn moves the push rod. After the push rod moves, it pushes the valve to open the valve. At this time, the coolant flows back to the engine through the radiator and thermostat valve, and then through the water pump to perform a large circulation.

[0003] In the related art, the wax bag includes a wax bag shell, a heater and a push rod. The wax bag shell is provided with a wax bag chamber for containing refined paraffin wax. The heater and the push rod are respectively located at two ends of the wax bag shell and are inserted into the wax bag chamber. The heater is used to heat the paraffin wax to melt it, so a wire is provided at one end of the heater away from the push rod.

[0004] Regarding the above-mentioned related technologies, since the heater is located in the wax bag chamber and is in direct contact with the wax, after the wax melts, it is easy to leak along the wire or the sealing ring under the condition of high internal pressure and different expansion coefficients of different materials, thereby causing the thermostat to fail. Utility Model Content

[0005] In order to prevent the wax in the thermostat wax pack from leaking out after melting, the present application provides an externally mounted separate heating wax pack.

[0006] The present application provides an externally separated heating wax bag, which adopts the following technical solution:

[0007] An externally mounted separated heating wax package comprises a wax package shell, a heater and a push rod, wherein a heating partition groove for installing the heater is provided on one side of the wax package shell, a wax package chamber for storing wax is provided inside the wax package shell, the push rod is partially inserted into the wax package chamber and partially protrudes from the wax package shell and is exposed to the outside, and the wax package chamber and the heating partition groove are not connected to each other.

[0008] Preferably, an assembly groove is provided on a side of the wax package shell facing away from the heating separation groove, the assembly groove is communicated with the wax package chamber, and a sealing component is installed in the assembly groove to prevent the liquid wax from leaking.

[0009] Preferably, the assembly groove includes a sealing groove located on a side of the wax bag chamber away from the heating partition groove, the sealing groove is communicated with the wax bag chamber, and the sealing assembly includes a sealing plug inserted into the sealing groove with interference fit.

[0010] Preferably, the assembly groove also includes a snap-in limit groove, which is located on the side of the sealing groove away from the wax bag chamber, and is communicated with the sealing groove. An end cover is snap-fitted and installed in the snap-in limit groove to limit the sealing plug column in the sealing groove.

[0011] Preferably, the diameter of the sealing groove is smaller than the inner diameter of the wax bag chamber.

[0012] Preferably, the groove diameter of the snap-fit ​​limit groove is larger than the groove diameter of the sealing groove, and an abutment convex edge ring is formed on the side of the sealing plug column close to the end cover, the outer diameter of the abutment convex edge ring is larger than the groove diameter of the sealing groove, and the abutment convex edge ring abuts against the groove bottom of the snap-fit ​​limit groove.

[0013] Preferably, a slot for inserting the abutting flange ring is provided on a side of the end cover close to the abutting flange ring.

[0014] Preferably, a side of the abutting convex edge ring close to the bottom of the slot is provided with an arc surface, and the bottom of the slot is provided with a fitting arc surface that fits with the arc surface.

[0015] Preferably, an inclined ring for limiting the end cover in the clamping limit groove is provided at the notch on the side of the clamping limit groove away from the sealing groove.

[0016] Preferably, one end of the push rod facing away from the heater passes through the sealing plug and the end cover.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. The heater is installed externally in the heating partition groove, and the wax in the wax package chamber is melted by heat conduction through the wax package shell wall, so that when the wax package is heated, it is not easy for the melted wax to leak along the heater wire due to the different expansion coefficients of different materials;

[0019] 2. After the sealing plug is inserted into the sealing groove with interference fit, it can effectively seal the wax package chamber, so that the melted wax is not easy to leak. In addition, the end cover is installed in the clamping limit groove to block the sealing plug, so that the sealing plug is more stable after being inserted into the sealing groove and is not easy to fall out;

[0020] 3. After the sealing plug is inserted into the slot, the arc surface on the abutting convex edge ring can fit tightly with the fitting arc surface, thereby improving the fit and sealing effect between the sealing plug and the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional view of the wax package in the embodiment of the present application.

[0022] Figure 2 It is a cross-sectional view of the wax package in the exploded state in the embodiment of the present application.

[0023] Explanation of the reference numerals: 1. wax shell; 11. heating partition groove; 12. wax bag chamber; 13. assembly groove; 14. sealing groove; 15. clamping limit groove; 16. tilting ring; 2. heater; 3. ejector rod; 4. sealing assembly; 41. sealing plug; 42. end cover; 43. abutting convex edge ring; 44. slot; 45. arc surface; 46. fitting arc surface. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-2 This application is described in further detail.

[0025] The present application embodiment discloses an externally mounted separate heating wax pack. Figure 1 and Figure 2 The externally separated heating wax package includes a wax package shell 1, a heater 2 and a push rod 3. A heating partition groove 11 is provided on one side of the wax package shell 1, and the heater 2 is installed in the heating partition groove 11. A wax package chamber 12 for storing wax is provided in the wax package shell 1, and the wax package chamber 12 and the heating partition groove 11 are not connected to each other. The push rod 3 is partially inserted into the wax package chamber 12; and part of it protrudes from the wax package shell 1 and is exposed to the outside to cooperate with the valve of the thermostat. The heater 2 is installed in the heating partition groove 11 by means of an external wax package chamber 12, so that when the wax package is heated, it is not easy for the melted wax to leak along the wire of the heater 2 due to the different expansion coefficients of different materials.

[0026] Reference Figure 1 and Figure 2 The wax package shell 1 is provided with an assembly groove 13 on one side away from the heating separation groove 11, and the assembly groove 13 is connected with the wax package chamber 12, so as to facilitate the injection of wax into the wax package chamber 12 during production. A sealing component 4 is installed in the assembly groove 13 to prevent the liquid wax from leaking out of the wax package chamber 12, and the sealing component 4 is sleeved on the top rod 3.

[0027] Reference Figure 1 and Figure 2The assembly groove 13 includes a sealing groove 14 and a clamping limit groove 15, and the sealing groove 14 is connected to the clamping limit groove 15. The clamping limit groove 15 is opened on the side of the wax package shell 1 away from the heating separation groove 11, and the sealing groove 14 is opened at the groove bottom of the clamping limit groove 15, and the sealing groove 14 is connected to the wax package chamber 12. The groove diameter of the clamping limit groove 15 is larger than the groove diameter of the sealing groove 14, that is, the clamping limit groove 15 and the sealing groove 14 form a stepped groove; the groove diameter of the sealing groove 14 is smaller than the inner diameter of the wax package chamber 12, and then when part of the sealing component 4 is inserted into the sealing groove 14, the wax in the wax package chamber 12 is less likely to leak out.

[0028] Reference Figure 1 and Figure 2 The sealing assembly 4 includes a sealing plug 41 and an end cover 42. The sealing plug 41 is inserted into the sealing groove 14 by interference fit. The end cover 42 is mounted in the clamping limit groove 15 to limit the sealing plug 41, so that the sealing plug 41 is not easily separated from the sealing groove 14. The end of the ejector rod 3 away from the heater 2 passes through the sealing plug 41 and the end cover 42.

[0029] The inner groove edge of the sealing groove 14 near the end cover 42 is chamfered, so as to facilitate the sealing plug 41 to be inserted into the sealing groove 14. The sealing plug 41 is integrally formed with an abutting convex edge ring 43 on the side near the end cover 42. The outer diameter of the abutting convex edge ring 43 is larger than the groove diameter of the sealing groove 14. The abutting convex edge ring 43 is located in the clamping limit groove 15, and the abutting convex edge ring 43 abuts against the groove bottom of the clamping limit groove 15, so as to prevent the sealing plug 41 from entering the wax bag chamber 12 from the sealing groove 14.

[0030] Reference Figure 1 and Figure 2 A slot 44 for inserting the abutting convex ring 43 is provided on one side of the end cover 42 close to the abutting convex ring 43, and an arc surface 45 is provided on one side of the abutting convex ring 43 close to the bottom of the slot 44. A fitting arc surface 46 that fits with the arc surface 45 is provided at the bottom of the slot 44, thereby improving the fit and sealing effect between the sealing plug 41 and the end cover 42.

[0031] Reference Figure 1 and Figure 2 The slot of the clamping limit slot 15 away from the sealing slot 14 is integrally formed with an inclined ring 16, and the inclined ring 16 gradually tilts toward the central axis of the clamping limit slot 15 along the distance from the sealing slot 14 to the clamping limit slot 15. Then, when the end cover 42 enters the clamping limit slot 15, the inclined ring 16 can clamp and limit the end cover 42 in the clamping limit slot 15.

[0032] The implementation principle of an externally separated heating wax bag in the embodiment of the present application is as follows: the heater 2 is installed externally in the heating separation groove 11, and the wax in the wax bag chamber 12 is melted by heat conduction through the wall of the wax bag shell 1, so that when the wax bag is heated, it is not easy for the melted wax to leak along the wire of the heater 2 due to the different expansion coefficients of different materials. The sealing plug 41 is inserted into the sealing groove 14 to block the sealing groove 14, so that the liquid wax is not easy to leak out from the wax bag chamber 12 through the sealing groove 14. At the same time, the end cover 42 presses the sealing plug 41 under the action of the tilting ring 16 to make it difficult for it to escape from the sealing groove 14.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An externally mounted separate heating wax bag, characterized in that: The invention comprises a wax package shell (1), a heater (2) and a push rod (3); a heating partition groove (11) for installing the heater (2) is provided on one side of the wax package shell (1); a wax package chamber (12) for storing wax is provided inside the wax package shell (1); the push rod (3) is partially inserted into the wax package chamber (12) and partially protrudes from the wax package shell (1) to be exposed to the outside; the wax package chamber (12) and the heating partition groove (11) are not connected to each other.

2. The externally-mounted separate heating wax bag according to claim 1, characterized in that: An assembly groove (13) is provided on the side of the wax package shell (1) facing away from the heating separation groove (11); the assembly groove (13) is communicated with the wax package chamber (12); and a sealing component (4) is installed in the assembly groove (13) to prevent liquid wax from leaking.

3. The externally separated heating wax bag according to claim 2, characterized in that: The assembly groove (13) comprises a sealing groove (14) located on a side of the wax bag chamber (12) away from the heating separation groove (11), the sealing groove (14) being in communication with the wax bag chamber (12), and the sealing component (4) comprising a sealing plug (41) interference-inserted into the sealing groove (14).

4. The externally separated heating wax bag according to claim 3, characterized in that: The assembly groove (13) further comprises a clamping limit groove (15), the clamping limit groove (15) being located on a side of the sealing groove (14) away from the wax bag chamber (12), the clamping limit groove (15) being communicated with the sealing groove (14), and an end cover (42) for limiting the sealing plug column (41) in the sealing groove (14) being clamped and installed in the clamping limit groove (15).

5. The externally separated heating wax bag according to claim 4, characterized in that: The groove diameter of the sealing groove (14) is smaller than the inner diameter of the wax bag chamber (12).

6. The externally separated heating wax bag according to claim 4, characterized in that: The groove diameter of the clamping limit groove (15) is larger than the groove diameter of the sealing groove (14); a contact convex edge ring (43) is formed on the side of the sealing plug (41) close to the end cover (42); the outer diameter of the contact convex edge ring (43) is larger than the groove diameter of the sealing groove (14); and the contact convex edge ring (43) is in contact with the groove bottom of the clamping limit groove (15).

7. The externally separated heating wax bag according to claim 6, characterized in that: A slot (44) for inserting the abutting convex edge ring (43) is provided on one side of the end cover (42) close to the abutting convex edge ring (43).

8. The externally separated heating wax bag according to claim 7, characterized in that: A circular arc surface (45) is provided on one side of the abutting convex edge ring (43) close to the bottom of the slot (44), and a fitting arc surface (46) that fits the circular arc surface (45) is provided at the bottom of the slot (44).

9. The externally separated heating wax bag according to claim 4, characterized in that: An inclined ring (16) for limiting the end cover (42) in the clamping limit groove (15) is provided at the groove opening on the side of the clamping limit groove (15) away from the sealing groove (14).

10. The externally separated heating wax bag according to claim 4, characterized in that: The end of the push rod (3) facing away from the heater (2) passes through the sealing plug (41) and the end cover (42).

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